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
Papavizas, George C., ed.
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 - Granada Allanheld, Osmun Publishers 1981 - ix, 461 p.; 25cm. - (Beltsville symposia in agricultural research; 5) .
9780246115126
632.96 P196B
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 - Granada Allanheld, Osmun Publishers 1981 - ix, 461 p.; 25cm. - (Beltsville symposia in agricultural research; 5) .
9780246115126
632.96 P196B
