Cita APA (7th ed.)
Roy, S. K. (1999). Fundamentals of surveying. Prentice Hall of India.
Cita Chicago (17th ed.)
Roy, S. K. Fundamentals of Surveying. New Delhi: Prentice Hall of India, 1999.
Cita MLA (9th ed.)
Roy, S. K. Fundamentals of Surveying. Prentice Hall of India, 1999.
Atenció: Aquestes cites poden no estar 100% correctes.