APA (7th ed.) Citation

Walton, W. C. (1989). Numerical groundwater modeling. Flow and contaminant migration (1st ed. 2nd printing.). Lewis Publishing.

Chicago Style (17th ed.) Citation

Walton, William Clarence. Numerical Groundwater Modeling. Flow and Contaminant Migration. 1st ed. 2nd printing. Chelsea: Lewis Publishing, 1989.

MLA (9th ed.) Citation

Walton, William Clarence. Numerical Groundwater Modeling. Flow and Contaminant Migration. 1st ed. 2nd printing. Lewis Publishing, 1989.