TY - BOOK AU - Campbell, Neil A., AU - ED - ED - ED - ED - SN - 0805318003 (hardback) SN - 2 PY - 1990///;copyright 199046 CY - Redwood City, CA PB - Benjamin/Cummings Publishing KW - KW - 2 KW - 0 KW - 6 KW - 20 KW - Biology N1 - Includes bibliographical references and index; 5 ER -