Dyfyniad APA
Benson, B. (1968). Building contractor's and home builder's handbook of bidding, surveying, and estimating. Prentice-hall.
Dyfyniad Arddull Chicago
Benson, Ben. Building Contractor's and Home Builder's Handbook of Bidding, Surveying, and Estimating. New Jarsey: Prentice-hall, 1968.
Dyfyniad MLA
Benson, Ben. Building Contractor's and Home Builder's Handbook of Bidding, Surveying, and Estimating. Prentice-hall, 1968.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.