Gaya APA

Spezzano, C. (2004). 50 Ways to Let Go and be Happy (Ed. 1 Cet. 1). Jakarta: PT Gramedia Pustaka Utama.

Gaya MLA

Spezzano, Chuck. "50 Ways to Let Go and be Happy". Ed. 1 Cet. 1 Jakarta: PT Gramedia Pustaka Utama, 2004. Text.