Ritchey, J. D., & Rumbaugh, J. O. (1996). Subsurface fluid-flow (ground water and vadose zone) modeling. ASTM.
Chicago Style (17. basım) AtıfRitchey, Joseph D., ve James O. Rumbaugh. Subsurface Fluid-flow (ground Water and Vadose Zone) Modeling. West Conshohocken, P.A: ASTM, 1996.
MLA (9th ed.) AtıfRitchey, Joseph D., ve James O. Rumbaugh. Subsurface Fluid-flow (ground Water and Vadose Zone) Modeling. ASTM, 1996.
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