The fish is red: The story of the secret war against Castro/ Warren Hinckle; William W. Turner

Rio Claro : um sistema brasileiro de grande lavoura, 1820-1920 / Warren Dean ; traduçao de Waldíva Marchiori Portinho

Remittances of Italian immigrants : from Brazil, Argentina, Uruguay and U. S. A., 1884-1914 / by Warren Dean

Rebirth of the Paraguayan Republic : the first Colorado era, 1878-1904 / Harris Gaylord Warren with the assistance of Katherine F. Warren

Paraguay and the Triple Alliance : the postwar decade, 1869-1878 / by Harris Gaylord Warren, with the assistance of Katherine F. Warren

The industrialization of Sao Paulo, 1880-1945/ Warren Dean

The Harkness Collection in the Library of Congress : manuscripts concerning Mexico: a guide / With selected transcriptions and translations by J. Benedict Warren

Diccionario de psicologia / Howard C. Warren, editor ; traducción y revisión de E. Imaz, A. Alatorre y L. Alaminos