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Biology -- Field work -- Juvenile literature

Books

   
Publisher: Garrard Pub. Co
ISBN10: 0811661083 ISBN13: 9780811661089 DDC: 574/.07/2 LCC: QH318.5
 
Publisher: Collier-Macmillan Canada
ISBN10: 0029731100 ISBN13: 9780029731109 DDC: 574/.07/23 LCC: QH318.5