Biological control in crop production.
- Totowa, New Jersey : Allanheld, Osmun, 1981.
- 461 p. : ill.
- Beltsville symposia in agricultural research. .
"Invited papers presented at a symposium held May 18-21, 1980, at the Beltsville Agricultural Research Center (BARC), Beltsville, Maryland"
0865980373
Plants, Protection of.
Pests--Control--Biological control.
"Invited papers presented at a symposium held May 18-21, 1980, at the Beltsville Agricultural Research Center (BARC), Beltsville, Maryland"
0865980373
Plants, Protection of.
Pests--Control--Biological control.