Gaya APA
Readings In Economics. (1955).
New York:
MCGraw Hill Book Company.
Gaya Chicago
Readings In Economics.
Ed. 6.
New York:
MCGraw Hill Book Company,
1955.
.
Gaya MLA
Readings In Economics.
Ed. 6.
New York:
MCGraw Hill Book Company,
1955.
.
Gaya Turabian
Readings In Economics.
New York:
MCGraw Hill Book Company,
1955.
.