- ISBN: 9780004723457 | 0004723457
- Cover: Paperback
- Copyright: 1/1/1999
Collins Gems are smartly designed pocket reference guides, providing knowledge at a glance on a wide variety of popular and timely subjects. Packed with outstanding color photos and illustrations, and featuring durable flexi-bindings, these unique quick-reference books offer the minimum in size and the maximum in information.



