publisher: Routledge
publish date: October 16th 1989
format: Textbook pages: 496
language: English
ISBN:
0582491797 (9780582491793)
publisher: Longman Publishing Group
format: hardcover pages: 481
language: English
ISBN:
0582046149 (9780582046146)
language: English
ISBN:
0582483433 (9780582483439)