Mahajan, G. (1995). Ground water surveys and investigation. Ashish.
Chicago Style aipamenaMahajan, Gautam. Ground Water Surveys and Investigation. New Delhi: Ashish, 1995.
MLA aipamenaMahajan, Gautam. Ground Water Surveys and Investigation. Ashish, 1995.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.