APA-referens

Lakshman Singh. (2000). Oil and gas fields of India. Indian petroleum publishers.

Chicago-stil citat

Lakshman Singh. Oil and Gas Fields of India. Dehradun: Indian petroleum publishers, 2000.

MLA-referens

Lakshman Singh. Oil and Gas Fields of India. Indian petroleum publishers, 2000.

Varning: dessa hänvisningar är inte alltid fullständigt riktiga.