Cita APA (7a ed.)

Hobbs, F. D., & Doling, J. F. (1981). Planning for engineers and surveyors. Pergamon Press.

Cita Chicago Style (17a ed.)

Hobbs, F. D., y J. F. Doling. Planning for Engineers and Surveyors. Oxford ; New York: Pergamon Press, 1981.

Cita MLA (8a ed.)

Hobbs, F. D., y J. F. Doling. Planning for Engineers and Surveyors. Pergamon Press, 1981.