Gaya APA
Amerika Business. (1966).
New York:
Harcourt, Brace & World.
Gaya Chicago
Amerika Business.
Ed. 2.
New York:
Harcourt, Brace & World,
1966.
.
Gaya MLA
Amerika Business.
Ed. 2.
New York:
Harcourt, Brace & World,
1966.
.
Gaya Turabian
Amerika Business.
New York:
Harcourt, Brace & World,
1966.
.