Scalf, M. R. (1988). Practical guide for ground water sampling. Scientific Publishers.
Chicago Style aipamenaScalf, Marion R. Practical Guide for Ground Water Sampling. Jodhpur: Scientific Publishers, 1988.
MLA aipamenaScalf, Marion R. Practical Guide for Ground Water Sampling. Scientific Publishers, 1988.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.