Gaya APA
Writing Research Papers, Foresman and Company. (1967).
Amerika:
.
Gaya Chicago
Writing Research Papers, Foresman and Company.
.
Amerika:
,
1967.
.
Gaya MLA
Writing Research Papers, Foresman and Company.
.
Amerika:
,
1967.
.
Gaya Turabian
Writing Research Papers, Foresman and Company.
Amerika:
,
1967.
.