Scalf, M. R. (1987). Manual of ground water quality: Sampling procedures. Scientific Publishers.
Čikaški stil citiranjaScalf, Marion R. Manual of Ground Water Quality: Sampling Procedures. Jodhpur: Scientific Publishers, 1987.
MLA način citiranjaScalf, Marion R. Manual of Ground Water Quality: Sampling Procedures. Scientific Publishers, 1987.
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