APA citiranje

Sharma, U., & Singh, A. (1990). Progress in environmental science and technology. Divyajyoti Prakashan.

Chicago Style (17th ed.) Citation

Sharma, U.S., and Alam Singh. Progress in Environmental Science and Technology. Jodhpur: Divyajyoti Prakashan, 1990.

MLA citiranje

Sharma, U.S., and Alam Singh. Progress in Environmental Science and Technology. Divyajyoti Prakashan, 1990.