Gaya APA

Whitman, B, D. (2013). Refrigeration & Air Conditioning Technology, Seventh Edition (Ed. 7). USA: Penerbit Delmar, Cengage Learning.

Gaya MLA

Whitman, Bill,, Dkk.. "Refrigeration & Air Conditioning Technology, Seventh Edition". Ed. 7 USA: Penerbit Delmar, Cengage Learning, 2013. Text.