3776234
9780060161613
Part of a series that answers such questions as "Why is bubble gum pink?" Other books in this series are: Imponderables (1986) and Why Do Clocks Run Clockwise? (1987).Feldman, David is the author of 'When Do Fish Sleep?: And Other Imponderables of Everyday Life' with ISBN 9780060161613 and ISBN 0060161612.
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