APA (7th ed.) Citation

Christopher, B. R., & McGuffey, V. C. (1997). Pavement subsurface drainage systems. National Academy Press.

Chicago Style (17th ed.) Citation

Christopher, Barry R., and Verne C. McGuffey. Pavement Subsurface Drainage Systems. Washington, D.C: National Academy Press, 1997.

MLA (9th ed.) Citation

Christopher, Barry R., and Verne C. McGuffey. Pavement Subsurface Drainage Systems. National Academy Press, 1997.