Παραπομπή APA

Harmer, S., & Shipley, A. (1968). Cambridge natural history: Isects part 2 etc. Today And Tommorow.

Παραπομπή Chicago Style

Harmer, S.F, και A.E Shipley. Cambridge Natural History: Isects Part 2 Etc. New Delhi: Today And Tommorow, 1968.

Παραπομπή MLA

Harmer, S.F, και A.E Shipley. Cambridge Natural History: Isects Part 2 Etc. Today And Tommorow, 1968.