Biological control in crop production : invited papers presented at a symposium organized by BARC Committee sponsared by and held at May 18 - 21 1980, at the Beltsville Agricultural Research Centre (BARC), Beltsville, Maryland, 20705 edited by George C. Papavizas

By: Papavizas, George C., edMaterial type: TextTextSeries: (Beltsville symposia in agricultural research; 5)Publication details: Granada Allanheld, Osmun Publishers 1981Description: ix, 461 p.; 25cmISBN: 9780246115126
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