Gaya APA
colomb, W, C, B, G, G. (2007).
A Manual for Writers of research papers, theses, and dissertations .
London:
chicago guides.
Gaya MLA
colomb, Wayne, C., Booth,, Gregory, G..
"A Manual for Writers of research papers, theses, and dissertations".
London:
chicago guides,
2007.
Text.