publisher: Routledge
publish date: October 1st 1987
format: paperback pages: 323
language: English
ISBN:
0891167765 (9780891167761)
publisher: Open University Press
format: paperback
language: English
ISBN:
0335098169 (9780335098163)
publisher: HarperCollins
format: hardcover pages: 323
language: English
ISBN:
0063183374 (9780063183377)