TY - BOOK AU - Papavizas,George Constantine ED - BARC Symposium V Committee. ED - Beltsville Agricultural Research Center. TI - Biological control in crop production SN - 0865980373 : U1 - G:54p73,N80 PY - 1981/// CY - Totowa, N.J., London PB - Allanheld, Osmun, Granada KW - Pests KW - Plants, Protection of KW - Biological control KW - Congresses N1 - Papers presented at an annual symposium organized by BARC Symposium V Committee; sponsored by and held at Beltsville Agricultural Research Center, Md., May 18-21, 1980 ER -