APA Edition Citation

O W Richards R G Devies. IMMS' General textbook of entomology-vol-2: Classification and biology (X.). B I publications pvt ltd.

Chicago Edition Citation

O W Richards R G Devies. IMMS' General Textbook of Entomology-vol-2: Classification and Biology. X. New delhi: B I publications pvt ltd.

MLA Edition Citation

O W Richards R G Devies. IMMS' General Textbook of Entomology-vol-2: Classification and Biology. X. B I publications pvt ltd.