APA aipamena

(1987). Protecting the nations ground water from contamination. Scientific Publishers.

Chicago Style aipamena

Protecting the Nations Ground Water from Contamination. Jodhpur: Scientific Publishers, 1987.

MLA aipamena

Protecting the Nations Ground Water from Contamination. Scientific Publishers, 1987.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.