Lakshman Singh. (2000). Oil and gas fields of India. Indian petroleum publishers.
Chicago ZitierstilLakshman Singh. Oil and Gas Fields of India. Dehradun: Indian petroleum publishers, 2000.
MLA ZitierstilLakshman Singh. Oil and Gas Fields of India. Indian petroleum publishers, 2000.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.