APA Edition Citation

Richards O W, D. R. G. (1977). MMS general textbook of entomology v 2 classification and biology (10.). B I publications pvt ltd.

Chicago Edition Citation

Richards O W, Davies R G. MMS General Textbook of Entomology V 2 Classification and Biology. 10. Delhi: B I publications pvt ltd, 1977.

MLA Edition Citation

Richards O W, Davies R G. MMS General Textbook of Entomology V 2 Classification and Biology. 10. B I publications pvt ltd, 1977.