APA (7th ed.) Citation

Van der Heijde, P., El-Kadi, A. I., & Williams, S. A. (1989). Groundwater modeling: An overview and status report. U.S. Environmental Protection Agency, R.S. Kerr Environmental Research Laboratory, Office of Research and Development.

Chicago Style (17th ed.) Citation

Van der Heijde, Paul, Aly I. El-Kadi, and Stan A. Williams. Groundwater Modeling: An Overview and Status Report. Ada, Okla.: U.S. Environmental Protection Agency, R.S. Kerr Environmental Research Laboratory, Office of Research and Development, 1989.

MLA (9th ed.) Citation

Van der Heijde, Paul, et al. Groundwater Modeling: An Overview and Status Report. U.S. Environmental Protection Agency, R.S. Kerr Environmental Research Laboratory, Office of Research and Development, 1989.