APA (7e ed.) Bronvermelding
Agor, R. (2017). A textbook of surveying and levelling (12th ed.). Khanna Pub.
Chicago (17e ed.) Bronvermelding
Agor, R. A Textbook of Surveying and Levelling. 12th ed. New Delhi: Khanna Pub, 2017.
MLA (9e ed.) Bronvermelding
Agor, R. A Textbook of Surveying and Levelling. 12th ed. Khanna Pub, 2017.
Let op: Deze citaties zijn niet altijd 100% accuraat.