Lua APA (7ú heag.)
Roy, S. K. (1999). Fundamentals of surveying. Prentice Hall of India.
Lua i Stíl Chicago (17ú heag.)
Roy, S. K. Fundamentals of Surveying. New Delhi: Prentice Hall of India, 1999.
Lua MLA (9ú heag.)
Roy, S. K. Fundamentals of Surveying. Prentice Hall of India, 1999.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.