Gaya APA

Cortina, J., Elder, J. (2005). OPENING DOORS: Understanding College Reading (Edisi 4 Cetakan 1). New York: McGraw Hill Companies.

Gaya MLA

Cortina, Joe., Elder, Janet. "OPENING DOORS: Understanding College Reading". Edisi 4 Cetakan 1 New York: McGraw Hill Companies, 2005. Text.