Gaya APA

Duru, O. et al (2017). Performance obligations for “revenue from contracts with customers” principle in the shipping industry (Maritime Business Review Performance obligations f). Singapore: Emerald Insight.

Gaya MLA

Duru, Okan. et al. "Performance obligations for “revenue from contracts with customers” principle in the shipping industry". Maritime Business Review Performance obligations f Singapore: Emerald Insight, 2017. Article.