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by Jacqueline SusannPaperback details (United Kingdom). details (USA). details (Germany). details (Canada). ISBN: 978-0-552-10029-8 ISBN-10: 0-552-10029-3 Black Swan · 1988  | 
| See also: | ||
| 1998 | Paperback | Once Is Not Enough | 
| 1974 | Paperback | Once is Not Enough | 
| 1973 | Hardcover | Once Is Not Enough |