publisher: New Awareness Network publish date: January 1st 2001
format: paperback
language: English
ISBN:
0971119821 (9780971119826)
publisher: Fireside Books publish date: February 1st 1980
format: paperback
language: English
ISBN:
0130185647 (9780130185648)
publisher: Prentice Hall
format: hardcover
language: English
ISBN:
0130185159 (9780130185150)