Cita APA (7th ed.)
SpringerLink (Online service) & Lai, K. Journal of Shipping and Trade. Springer Singapore : Imprint: Springer.
Cita Chicago (17th ed.)
SpringerLink (Online service) i Kee-Hung Lai. Journal of Shipping and Trade. Singapore: Springer Singapore : Imprint: Springer.
Cita MLA (9th ed.)
SpringerLink (Online service) i Kee-Hung Lai. Journal of Shipping and Trade. Springer Singapore : Imprint: Springer.
Atenció: Aquestes cites poden no estar 100% correctes.