Baerg, W. (1942). Introduction to applied entomology (2nd edition.). Burgess.
Cita Chicago Style (17a ed.)Baerg, W.J. Introduction to Applied Entomology. 2nd edition. Minneapolis: Burgess, 1942.
Cita MLA (8a ed.)Baerg, W.J. Introduction to Applied Entomology. 2nd edition. Burgess, 1942.
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