|aTwin and super-twin /|cGillian Cross ; illustrated by Maureen Bradley.
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|aOxford :|bOxford University Press,|c1990.
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|a169 p. :|bill. ;|c20 cm.
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|aThe interaction between two street gangs is dynamically affected when David, one of a set of twins, finds his arm transforming into a snake, sausages, and other bizarre objects.