Descripción
Publicado:Vol. 241, no. 1300 (July 23, 1990)-
Notas:Refereed/Peer-reviewed
Some issues also have a theme title.
Frecuencia de Publicación:Twice monthly, 1998-
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:14712954