Descripción
Publicado:Print began with vol. 1, pt. 1, published in 1956.
Frecuencia de Publicación:Three issues a year
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.
Mode of access: World Wide Web.
ISSN:1469512X