Cita APA

(1981). Biological control in crop production: Invited papers presented at a symposium held May 18-21, 1980, at the Beltsville Agricultural Research Center (BARC), Beltsville, Maryland. --. London, Sydney: Granada.

Citación estilo Chicago

Biological Control in Crop Production: Invited Papers Presented At a Symposium Held May 18-21, 1980, At the Beltsville Agricultural Research Center (BARC), Beltsville, Maryland. --. London, Sydney: Granada, 1981.

Cita MLA

Biological Control in Crop Production: Invited Papers Presented At a Symposium Held May 18-21, 1980, At the Beltsville Agricultural Research Center (BARC), Beltsville, Maryland. --. London, Sydney: Granada, 1981.