publisher: Taylor & Francis, Inc. publish date: January 1st 1981
format: paperback pages: 402
ISBN:
090527315X (9780905273150)
publisher: Taylor & Francis, Inc. publish date: January 1st 1981
format: hardcover pages: 420
ISBN:
0905273184 (9780905273181)
publisher: Open University, 77 pages, " /> publish date: 2006
pages: 77
ISBN:
0749216212 (9780749216214)
publisher: Sage Publications (CA) publish date: June 2nd 2003
format: paperback pages: 238
language: English
ISBN:
0761942092 (9780761942092)