publisher: Penguin publish date: 1972
format: paperback pages: 359
language: English
ISBN:
0140213821
publisher: Touchstone
publish date: April 15th 1970
format: paperback pages: 352
language: English
ISBN:
0671205595 (9780671205591)
publisher: Wisdom Publications publish date: June 15th 1986
format: paperback pages: 276
language: English
ISBN:
0861710452 (9780861710454)