Gaya APA

Graham, E. (2015). Maritime security and threats to energy transportation in Southeast Asia (VOL. 160 NO.2pp. 20–31). Australia: Routledge.

Gaya MLA

Graham, Euan. "Maritime security and threats to energy transportation in Southeast Asia". VOL. 160 NO.2pp. 20–31 Australia: Routledge, 2015. Article.