Gaya APA

Wirz, D. (2017). Commercial Refrigeration for Air Conditioning Technicians Third Edition (Third Edition). United States of America: USA: CENGAGE Learning, 2013.

Gaya MLA

Wirz, Dick. "Commercial Refrigeration for Air Conditioning Technicians Third Edition". Third Edition United States of America: USA: CENGAGE Learning, 2013, 2017. Text.