APA (7th ed.) Citation

Cortina, J., & Elder, J. (2005). Opening Doors: Understanding college reading (4th ed.). McGraw-Hill.

Chicago Style (17th ed.) Citation

Cortina, Joe, and Janet Elder. Opening Doors: Understanding College Reading. 4th ed. Boston: McGraw-Hill, 2005.

MLA (9th ed.) Citation

Cortina, Joe, and Janet Elder. Opening Doors: Understanding College Reading. 4th ed. McGraw-Hill, 2005.