Gaya APA

Sr, Ã, H. et al (2011). Helicopter routing in the Norwegian oil industry: Including safety concerns for passenger transport (Vol. 41 No. 4, 2011 pp. 401-415). Norway: Emerald Insight.

Gaya MLA

Sr, Øyvind, Halskau. et al. "Helicopter routing in the Norwegian oil industry: Including safety concerns for passenger transport". Vol. 41 No. 4, 2011 pp. 401-415 Norway: Emerald Insight, 2011. Article.