Gaya APA
Popular Mechanics volume 9. (1986).
New York:
Hearst Direct Corporation.
Gaya Chicago
Popular Mechanics volume 9.
.
New York:
Hearst Direct Corporation,
1986.
Text.
Gaya MLA
Popular Mechanics volume 9.
.
New York:
Hearst Direct Corporation,
1986.
Text.
Gaya Turabian
Popular Mechanics volume 9.
New York:
Hearst Direct Corporation,
1986.
Print.