Cita APA (7th ed.)
Clancy, J. (1991). Site Surveying and Levelling (2nd ed.). Routledge.
Cita Chicago (17th ed.)
Clancy, John. Site Surveying and Levelling. 2nd ed. New York: Routledge, 1991.
Cita MLA (9th ed.)
Clancy, John. Site Surveying and Levelling. 2nd ed. Routledge, 1991.
Atenció: Aquestes cites poden no estar 100% correctes.