APA aipamena

Valdiya,K.S. (1987). Environmental geology: Indian context. Tata Mc Graw Hill.

Chicago Style aipamena

Valdiya,K.S. Environmental Geology: Indian Context. New Delhi: Tata Mc Graw Hill, 1987.

MLA aipamena

Valdiya,K.S. Environmental Geology: Indian Context. Tata Mc Graw Hill, 1987.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.