Gaya APA

Mcgowan, B. (2014). Pitch perfect: how to say it right the first time, every time (Ed.1; Cet.1). NEW YORK: Harper Collins Publishers.

Gaya MLA

Mcgowan, Bill. "Pitch perfect: how to say it right the first time, every time". Ed.1; Cet.1 NEW YORK: Harper Collins Publishers, 2014. Text.