Dyfyniad APA

Kennedy, T. (2002). Roofing instant answers. New York, NY: McGraw-Hill.

Dyfyniad Arddull Chicago

Kennedy, Terry. Roofing Instant Answers. New York, NY: McGraw-Hill, 2002.

Dyfyniad MLA

Kennedy, Terry. Roofing Instant Answers. New York, NY: McGraw-Hill, 2002.

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