Dyfyniad APA

Cortina Joe, & Elder Janet. (2005). Opening Doors: Understanding College Reading. American: MC Graw Hill.

Dyfyniad Arddull Chicago

Cortina Joe, và Elder Janet. Opening Doors: Understanding College Reading. American: MC Graw Hill, 2005.

Dyfyniad MLA

Cortina Joe, và Elder Janet. Opening Doors: Understanding College Reading. American: MC Graw Hill, 2005.

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