publisher: Cengage Learning publish date: August 8th 1997
format: paperback pages: 336
language: English
ISBN:
0155038192 (9780155038196)
publisher: Houghton Mifflin Harcourt P publish date: June 28th 1971
format: paperback pages: 319
language: English
ISBN:
0155027557 (9780155027558)