Gaya APA
PURVES, A., Takala, S.
(1984).
HOW TO WRITE WELL IN COLLEGE
.
San diego:
Harcourt Brace Jovanovich.
Gaya MLA
PURVES, Alan., Takala, Sauli.
"HOW TO WRITE WELL IN COLLEGE".
San diego:
Harcourt Brace Jovanovich,
1984.
Textbook.