Dyfyniad APA

Signs of the Times magazine. (1989). Successful sign design. Retail Reporting.

Dyfyniad Arddull Chicago

Signs of the Times magazine. Successful Sign Design. New York: Retail Reporting, 1989.

Dyfyniad MLA

Signs of the Times magazine. Successful Sign Design. Retail Reporting, 1989.

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