Underwater Research Institute & Cate, B. (1972). Ground water pollution. Directory Press.
Chicago Style aipamenaUnderwater Research Institute and Bill Cate. Ground Water Pollution. [St. Louis: Directory Press, 1972.
MLA aipamenaUnderwater Research Institute and Bill Cate. Ground Water Pollution. Directory Press, 1972.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.