Bug vs. bug: nature's method of controlling injurious species Isaac, John creator California. State Commission of Horticulture. contributor text book Sacramento W.W. Shannon, Supt. State Printing 1906 1906
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ENG At head of title: State Horticultural Commission. Ellwood Cooper, commissioner. Reprinted from the First biennial report of the State Horticultural Commissioner. Beneficial insects California Insect pests Insects SB933 .I7 https://www.biodiversitylibrary.org/bibliography/9339 8063241 09025509 10.5962/bhl.title.9339 DLC