Gaya APA
Walvoord, B, F. (1985).
Writing: Strategies for all disciplines / Barbara Fassler Walvoord .
:
Prentice-Hall.
Gaya MLA
Walvoord, Barbara, Fassler.
"Writing: Strategies for all disciplines / Barbara Fassler Walvoord".
:
Prentice-Hall,
1985.
Referensi.