publisher: EMC Corp., 31 pages, Hardcover" /> publish date: February 28th 1973
format: hardcover pages: 31
language: English
ISBN:
0884360318 (9780884360315)
publisher: EMC/Paradigm Publishing publish date: February 28th 1987
format: paperback
language: English
ISBN:
0884360326 (9780884360322)