TY - BOOK AU - Coppel,Harry C. AU - Mertins, James W. TI - Biological insect pest suppression SN - 3540079319 AV - SB933.3 .C66 PY - 1977/// CY - New York PB - Springer-Verlag KW - pests KW - Insect pest KW - Agriculture (General) N1 - Includes bibliographical references p.256-301 and index; With 46 figures ER -