Gaya APA
Economic and Analytical Approach. (1962).
Amerika:
Richard D. Irwin Inc..
Gaya Chicago
Economic and Analytical Approach.
Ed. Revisi.
Amerika:
Richard D. Irwin Inc.,
1962.
.
Gaya MLA
Economic and Analytical Approach.
Ed. Revisi.
Amerika:
Richard D. Irwin Inc.,
1962.
.
Gaya Turabian
Economic and Analytical Approach.
Amerika:
Richard D. Irwin Inc.,
1962.
.