Swan, L. A. (1964). Beneficial insects; nature's alternatives to chemical insecticides: Animal predation, parasitism, disease organisms ([1st ed.].). Harper & Row.
Παραπομπή σε μορφή Chicago (17η εκδ.)Swan, Lester A. Beneficial Insects; Nature's Alternatives to Chemical Insecticides: Animal Predation, Parasitism, Disease Organisms. [1st ed.]. New York: Harper & Row, 1964.
Παραπομπή σε μορφή MLA (8th εκδ.)Swan, Lester A. Beneficial Insects; Nature's Alternatives to Chemical Insecticides: Animal Predation, Parasitism, Disease Organisms. [1st ed.]. Harper & Row, 1964.
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