Gaya APA

Pluma, C, I, S, T, I, A, E, N, G, E, R, M. et al (2014). Bunker Purchasing With Contracts (Vol. 16, 4,). United Kingdom: Macmillan Publishers Ltd.

Gaya MLA

Pluma, Chr, I, S, T, I, An, Edi, N, G, E, R, Munk. et al. "Bunker Purchasing With Contracts". Vol. 16, 4, United Kingdom: Macmillan Publishers Ltd, 2014. Article.