Gaya APA
Swarbrick, J. (1991).
Proceedings of the thirteenth : Asian pacific weed science society conference, Jakarta, Indonesia 15-18 october 1991 volume 1 .
Jakarta:
Asian Pacific Weed Science Society and Weed Science Society of Indonesia.
Gaya MLA
Swarbrick, J.T..
"Proceedings of the thirteenth : Asian pacific weed science society conference, Jakarta, Indonesia 15-18 october 1991 volume 1".
Jakarta:
Asian Pacific Weed Science Society and Weed Science Society of Indonesia,
1991.
Text.