APA (7th ed.) Citation

Cortina, J., & Elder, J. (2002). Opening doors: Understanding college reading (3rd ed.). McGraw-Hill.

Chicago Style (17th ed.) Citation

Cortina, Joe, and Janet Elder. Opening Doors: Understanding College Reading. 3rd ed. Boston: McGraw-Hill, 2002.

MLA (9th ed.) Citation

Cortina, Joe, and Janet Elder. Opening Doors: Understanding College Reading. 3rd ed. McGraw-Hill, 2002.