TY - BOOK AU - Bosch, Robert van den AU - Messenger, P.S. TI - Biological control SN - 0700202307 U1 - 632.96 21st ed. PY - 1974/// CY - New York PB - Intertext Books KW - Biological control KW - Insect pests KW - Pest control N1 - Index: p. 171-80 ER -