civilizaciones ignoradas
By: Francisco Aniceto Lugo.
Edition: 2a ed., la de Editorial Diana. --
Publisher: Editorial Diana
Published: 1978
Place of publication: México
Language: spa
Subjects: Civilization; Life on other planets; Astronomy -- Curiosa and miscellany
Notes: Cover title.
Table of contents: value: t. 1.  Desconocidos senderos de la vida.