publisher: Open University Press publish date: May 1st 1992
format: hardcover pages: 160
language: English
ISBN:
033509743X (9780335097432)
publisher: Open University Press
format: paperback
language: English
ISBN:
0335097421 (9780335097425)
publisher: Taylor & Francis Group publish date: January 28th 1997
format: hardcover pages: 163
language: English
ISBN:
0335196969 (9780335196968)