Gaya APA

Pattern of Purpose: A Rethorical Reader. (2009). New York: McGraw-Hill.

Gaya Chicago

Pattern of Purpose: A Rethorical Reader. Ed.5. New York: McGraw-Hill, 2009. .

Gaya MLA

Pattern of Purpose: A Rethorical Reader. Ed.5. New York: McGraw-Hill, 2009. .

Gaya Turabian

Pattern of Purpose: A Rethorical Reader. New York: McGraw-Hill, 2009. .