Leadership in Psychiatry
Dinesh Bhugra, Pedro Ruiz, Susham Gupta

Kaplan & Sadock's Concise Textbook of Clinical Psychiatry (English Edition)
Benjamin Sadock, Virginia A. Sadock, Pedro Ruiz

Tragedias—2
A secreto agravio, secreta venganza
El médico de su honra
El pintor de su deshonraPedro Calderón de la Barca, Francisco Ruiz Ramón

DIY Microcontroller Projects for Hobbyists
Miguel Angel Garcia-Ruiz, Pedro Cesar Santana Mancilla

Kaplan and Sadock's Comprehensive Textbook of Psychiatry
Benjamin J. Sadock, Virginia A. Sadock, Pedro Ruiz

Tragedias (3)
Los cabellos de Absalón
La devoción de la cruz
El mágico prodigioso
La cisma de InglaterraPedro Calderón de La Barca, Francisco Ruiz Ramón

Compêndio de Psiquiatria
Ciência do Comportamento e Psiquiatria ClínicaBenjamin J. Sadock, Virginia A. Sadock, Pedro Ruiz

Kaplan and Sadock's Synopsis of Psychiatry: Behavioral Sciences/Clinical Psychiatry (English Edition)
Benjamin J. Sadock, Virginia A. Sadock, Pedro Ruiz

Kaplan and Sadock's Synopsis of Psychiatry
Benjamin J. Sadock, Virginia A. Sadock, Pedro Ruiz

Compêndio de Psiquiatria
Ciência do Comportamento e Psiquiatria ClínicaBenjamin J. Sadock, Virginia A. Sadock, Pedro Ruiz

Compêndio de Psiquiatria: Ciência do Comportamento e Psiquiatria Clínica
Benjamin J. Sadock, Virginia A. Sadock, Pedro Ruiz

Tragedias (vol. 2)
A secreto agravio, secreta venganza
El médico de su honra
El pintor de su deshonraPedro Calderón de la Barca, Francisco Ruiz Ramón

DIY Microcontroller Projects for Hobbyists: The ultimate project-based guide to building real-world embedded applications in C and C++ programming (English Edition)
Miguel Angel Garcia-Ruiz, Pedro Cesar Santana Mancilla

Kaplan and Sadock's Comprehensive Textbook of Psychiatry
Benjamin J. Sadock, Virginia A. Sadock, Dr. Pedro Ruiz MD

Quando o Universo Conspira
Antologia dos SignosLilly Belmount, Robson Cuer, Graciele Ruiz, Bianca Sousa, Laritza Oliveira, .....................

Cuentos panameños Ⅱ
AntologíaJusto Arroyo, José Ávila, Carlos Francisco Changmarin, Eustorgio Chong Ruiz, Enrique Chuez, ...............

Poema-Piada
Breve Antologia da Poesia EngraçadaAlice Ruiz, Alice Sant'Anna, André Dahmer, Angélica Freitas, Bith, ...............................................................

Creepypastas: Lendas da Internet
Lendas da InternetGlau Kemp, Graciele Ruiz, Raquel Pagno, Bruno Godoi, Gustavo Lopes, ..............................................................................

Lento crecimiento y caída del bienestar en la economía de Baja California (Spanish Edition)
Juan Manuel Ocegueda Hernández, Alejandro Mungaray Lagarda, Rogelio Varela Llamas, Ramón Amadeo Castillo Ponce, Antonio de Jesús Rosas Valenzuela, .............................................

Lecciones de Derecho Mercantil
Guillermo J. Jiménez Sánchez, Alberto Díaz Moreno, Luis Angulo Rodríguez, Pedro Baena Baena, Javier Camacho de los Ríos, .......................................................................................

Tempo Insólito
Antologia de poesias, contos e crônicasAdriana Santiago, Alcidéa Miguel, Aldo Carpinetti, Ana Carolina Deitos, Ana Fabrícia Rodrigues, ................................................................................................................................................................................................................................................