APA
Papavizas G. C., BARC Symposium V Committee & Beltville Agricultural reserch center. (1981). Biological control in crop production. Totowa: Granada.
Chicago
Papavizas George C, BARC Symposium V Committee and Beltville Agricultural reserch center. 1981. Biological control in crop production. Totowa: Granada.
Harvard
Papavizas G. C., BARC Symposium V Committee and Beltville Agricultural reserch center. (1981). Biological control in crop production. Totowa: Granada.
MLA
Papavizas George C, BARC Symposium V Committee and Beltville Agricultural reserch center. Biological control in crop production. Totowa: Granada. 1981.