Παραπομπή APA

Kotpal,, . R. (2000). Modern textbook of zoology: Invertebrates. (8th rev.). Rastogi..

Παραπομπή Chicago Style

Kotpal,, R.L. Modern Textbook of Zoology: Invertebrates. 8th rev. Meerut: Rastogi., 2000.

Παραπομπή MLA

Kotpal,, R.L. Modern Textbook of Zoology: Invertebrates. 8th rev. Rastogi., 2000.