APA

Sandhu G. S., . (2005). Objective Invertebrate Zoology. delhi: Campus Books.

Chicago

Sandhu G S, . 2005. Objective Invertebrate Zoology. delhi: Campus Books.

Harvard

Sandhu G. S., . (2005). Objective Invertebrate Zoology. delhi: Campus Books.

MLA

Sandhu G S, . Objective Invertebrate Zoology. delhi: Campus Books. 2005.