Plný text je přístupný pouze z počítačů Ostravské univerzity
Supplements accompany some issues.
Electronic reproduction. [S.l.] : HathiTrust Digital Library, 2010.
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. http://purl.oclc.org/DLF/benchrepro0212
"News and notes" section continued in 1968 as part of: PS; "Book review" sections continued in 2003 as part of: Perspectives on politics.
Description based on JSTOR World Wide Web homepage; title from title screen.