Gaya APA

D.Althouse, A. et al (1992). Study guide to be used in connection with the text : modern referigeration and air conditioning . Holand: The Goodhert - Willcox.

Gaya MLA

D.Althouse, Andrew. et al. "Study guide to be used in connection with the text : modern referigeration and air conditioning". Holand: The Goodhert - Willcox, 1992. Text.