Dyfyniad APA

Design process. (1972). Design process. Prentice-Hall of India.

Dyfyniad Arddull Chicago

Design process. Design Process. New Jersey: Prentice-Hall of India, 1972.

Dyfyniad MLA

Design process. Design Process. Prentice-Hall of India, 1972.

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