TY - GEN AU - Reichelderfer, K. H AU - Norton, G. A AU - Carlson, G. A TI - Economic guidelines for crop pest control SN - 9251021090 U1 - 632.9 PY - 1984/// CY - Rome PB - Food and Agriculture Organization of the United Nations KW - AGRICULTURE AND RELATED TECHNOLOGIES KW - PLANT INJURIES ,DISEASES,PESTS KW - GENERAL TOPICS OF PEST AND DISEASE CONTROL ER -