Scalf, M. . R., Cosby, R. L. . .., Dunlap, W. J. . .., Fryberger, J. S. . .., & McNabb, J. F. . .. (1987). Manual of ground water quality sampling procedures (1.). Scientific Publishers.
Chicago Edition CitationScalf, Marian R., Roger L. Cosby, Williams J. Dunlap, John S. Fryberger, and James F. McNabb. Manual of Ground Water Quality Sampling Procedures. 1. Jodhpur: Scientific Publishers, 1987.
MLA Edition CitationScalf, Marian R., et al. Manual of Ground Water Quality Sampling Procedures. 1. Scientific Publishers, 1987.
Warning: These citations may not always be 100% accurate.