APA (7th ed.) Citation

Montgomery, J. H., & Welkom, L. M. (1990). Groundwater chemicals desk reference. Lewis Publishers.

Chicago Style (17th ed.) Citation

Montgomery, John H., and Linda M. Welkom. Groundwater Chemicals Desk Reference. Chelsea, Mich.: Lewis Publishers, 1990.

MLA (9th ed.) Citation

Montgomery, John H., and Linda M. Welkom. Groundwater Chemicals Desk Reference. Lewis Publishers, 1990.