Descripción
Publicado:Vol. 35, no. 1 (Jan. 1977)-
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.
ISSN:2169-8481 (Electrónico)
0147-9369 (Papel)