Gaya APA

Lee, S., SONG, J. (2014). Economic possibilities of shipping though Northern Sea route (Volume 30 Number 3 December 2014). Korea: Routledge.

Gaya MLA

Lee, Sung-Woo., SONG, Ju-Mi. "Economic possibilities of shipping though Northern Sea route". Volume 30 Number 3 December 2014 Korea: Routledge, 2014. Article.