Dyfyniad APA

(1988). Quality in the Constructed Project a Guideline for Owners, Designers and Constructors. ACSE.

Dyfyniad Arddull Chicago

Quality in the Constructed Project a Guideline for Owners, Designers and Constructors. New York: ACSE, 1988.

Dyfyniad MLA

Quality in the Constructed Project a Guideline for Owners, Designers and Constructors. ACSE, 1988.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.