APA (7th ed.) Zitazioa
Dutta, B. (1959). Estimating and costing in civil engineering: Theory and practice (23rd ed.). USB Publisheas' Distribution Ltd..
Chicago Style (17th ed.) Zitazioa
Dutta, B.N. Estimating and Costing in Civil Engineering: Theory and Practice. 23rd ed. New Delhi: USB Publisheas' Distribution Ltd., 1959.
MLA (9th ed.) Zitazioa
Dutta, B.N. Estimating and Costing in Civil Engineering: Theory and Practice. 23rd ed. USB Publisheas' Distribution Ltd., 1959.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.