Descripción
Publicado:Print began with vol. 1, no. 1 (Apr. 25, 1927); ceased in 2011.
Frecuencia de Publicación:Bimonthly, <Aug. 1993->
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.