Dyfyniad APA

Cortina, J. (2005). Opening doors: Understanding college reading. Boston: McGraw-Hill.

Dyfyniad Arddull Chicago

Cortina, Joe. Opening Doors: Understanding College Reading. Boston: McGraw-Hill, 2005.

Dyfyniad MLA

Cortina, Joe. Opening Doors: Understanding College Reading. Boston: McGraw-Hill, 2005.

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