Παραπομπή APA

Goel, P. a. S. K. (1996). Environmental guidelines and standardsin India. Techno Science.

Παραπομπή Chicago Style

Goel, P.K. and Sharma K.P. Environmental Guidelines and Standardsin India. Boston: Techno Science, 1996.

Παραπομπή MLA

Goel, P.K. and Sharma K.P. Environmental Guidelines and Standardsin India. Techno Science, 1996.