Παραπομπή APA

Gopala,Rao M, Gopala Rao, M., & Sittig, M. (1973). Outlines of chemical technology. Affiliated east-west press Pvt Ltd..

Παραπομπή Chicago Style

Gopala,Rao M, M. Gopala Rao, και Marshall Sittig. Outlines of Chemical Technology. New Delhi: Affiliated east-west press Pvt Ltd., 1973.

Παραπομπή MLA

Gopala,Rao M, et al. Outlines of Chemical Technology. Affiliated east-west press Pvt Ltd., 1973.