Cita APA (7th ed.)
Roy,S.K. (2010). Fundamentals of surveying (2nd ed.). PHI Learning.
Cita Chicago (17th ed.)
Roy,S.K. Fundamentals of Surveying. 2nd ed. New Delhi: PHI Learning, 2010.
Cita MLA (9th ed.)
Roy,S.K. Fundamentals of Surveying. 2nd ed. PHI Learning, 2010.
Atenció: Aquestes cites poden no estar 100% correctes.