Gaya APA
American Business Enterprise. (1986).
:
Richard D. Irwin Inc..
Gaya Chicago
American Business Enterprise.
Ed. 6.
:
Richard D. Irwin Inc.,
1986.
.
Gaya MLA
American Business Enterprise.
Ed. 6.
:
Richard D. Irwin Inc.,
1986.
.
Gaya Turabian
American Business Enterprise.
:
Richard D. Irwin Inc.,
1986.
.