Cita APA (7a ed.)
Duggal,S.K. (2013). Surveying (4th ed.). McGraw-Hill.
Cita Chicago Style (17a ed.)
Duggal,S.K. Surveying. 4th ed. New Delhi: McGraw-Hill, 2013.
Cita MLA (9a ed.)
Duggal,S.K. Surveying. 4th ed. McGraw-Hill, 2013.
Precaución: Estas citas no son 100% exactas.