Biological methods in crop pest control an introductory study
Ordish, George
Biological methods in crop pest control an introductory study - London Constable 1967 - 242 p. illus., 13 plates (incl. ports.), 11 tables, 3 diagrs 23 cm.
Pests--Control--Biological control
632 / .96
Biological methods in crop pest control an introductory study - London Constable 1967 - 242 p. illus., 13 plates (incl. ports.), 11 tables, 3 diagrs 23 cm.
Pests--Control--Biological control
632 / .96