Descripción
Publicado:Began with v. 1, no. 1 (nov./dic. 1964); ceased with v. 21, no. 11 = 131 (Nov. 1985)
Notas:Subtitle varies.
Editor: R. Xirau, Mar./Apr. 1966-
Frecuencia de Publicación:11 issues yearly, 1985
Formato:Master and use copy. Digital master created according to Benchmark for Faithful Digital Reproductions of Monographs and Serials, Version 1. Digital Library Federation, December 2002.