Gaya APA
Elonka, S., Minich, Q, W. (1961).
Standard refrigeration and air conditioning questions and answers .
Singapore:
McGraw-Hill, Inc..
Gaya MLA
Elonka, Steve., Minich, Quaid, W.
"Standard refrigeration and air conditioning questions and answers".
Singapore:
McGraw-Hill, Inc.,
1961.
Buku.