[Alexander von Humboldt] ; directed, designed and edited by Benjamin Villegas ; preliminary remarks, Gustavo E. Gomez Franco ; preface, German Arciniegas ; prologue, Jorge Arias de Greiff ; director of photography, Diego Miguel Garces ; translated from the Spanish and collated with the German and French originals by Allan S. Trueblood

Villegas Editores 1994 1st ed The route of Humboldt : Colombia and Venezuela : selected texts of Alexander von Humboldt v. 2

Available at 1 libraries

translated by Alan S. Trueblood ; with a foreword by Octavio Paz

Harvard University Press 1988

alk. paper , pbk. : alk. paper

Available at 4 libraries

Lope de Vega ; translated and edited by Alan S. Trueblood and Edwin Honig

Harvard University Press 1985

Available at 2 libraries

Alan S. Trueblood

Harvard University Press 1974

Available at 4 libraries