publisher: PSI Research
publish date: February 1st 1985
format: paperback pages: 207
language: English
ISBN:
0916378586 (9780916378585)
publisher: Oasis Press
format: paperback
language: English
ISBN:
1555710212 (9781555710217)
publisher: PSI Research
pages: 200
language: English
ISBN:
1555710204 (9781555710200)