Gaya APA

JENNINGS, B, H., LEWIS, S, R. (1951). AIR CONDITIONING AND REFRIGERATION (Third Edition). Pennsylvania: INTERNATIONAL TEXTBOOK COMPANY.

Gaya MLA

JENNINGS, Burgees, H.., LEWIS, SAMUEL, R.. "AIR CONDITIONING AND REFRIGERATION". Third Edition Pennsylvania: INTERNATIONAL TEXTBOOK COMPANY, 1951. Textbook.