publisher: EMC/Paradigm Publishing publish date: June 1st 1976
format: paperback
language: English
ISBN:
0884362779 (9780884362777)
publisher: John Murray publish date: January 1st 1979
format: paperback pages: 72
language: English
ISBN:
0719533333 (9780719533334)
language: English
ISBN:
0850485274 (9780850485271)