Gaya APA
Patrick, D, R., Fardo, S, W.
(1982).
Energy management and conservation
.
Englewood Cliffs:
Prentice-Hall.
Gaya MLA
Patrick, Dale, R.., Fardo, Stephen, W..
"Energy management and conservation".
Englewood Cliffs:
Prentice-Hall,
1982.
Text.