Encyclopaedia of Religion and Religions / by Pike, E. Royston

Encyclopaedia of the social sciences / by Seligman, Edwin R. A.

Enciclopedia internacional de las ciencias sociales /

Enciclopedia de psiquiatría / by Vidal, Guillermo

Enciclopedia de la educación moderna / by Rivlin, Harry N.

The historians' history of the world : a comprehensive narrative of the rise and development of nations as recorded by the great writers of all ages /

Texto completo de la edición de 1904-1905. [Consulta: 2020/06/05] v. 1
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Enciclopedia Universal Ilustrada europeo-americana /

Enciclopedia práctica de pedagogía /

Oxford Illustrated Encyclopedia of Peoples and Cultures /

Discurso preliminar de la enciclopedia ; Investigaciones filosóficas sobre el origen y la naturaleza de lo bello / by Alembert, Jean le Rond d' 1717-1783

Enciclopedia de problemas sicológicos / by Narramore, Clyde M., 1916-2015

The Oxford companion to philosophy /

The New Encyclopaedia Britannica /

Enciclopedia hispánica /

Diccionario enciclopédico Espasa /

Enciclopedia gráfica de la cerámica / by Saavedra Mendez, Jorge

Companion encyclopedia of anthropology : humanity, culture and social life /

Diccionario enciclopédico ilustrado : Océano Uno.

Diccionario enciclopédico Salvat.

The concise encyclopaedia of archaeology /