Gubbins, E. J. (1986). The shipping industry: The technology and economics of specialisation. Gordon and Breach Science Publishers.
Citazione stile Chigago Style (17a edizione)Gubbins, Edmund J. The Shipping Industry: The Technology and Economics of Specialisation. Nueva York: Gordon and Breach Science Publishers, 1986.
Citatione MLA (9a ed.)Gubbins, Edmund J. The Shipping Industry: The Technology and Economics of Specialisation. Gordon and Breach Science Publishers, 1986.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.