APA (7th ed.) Citation

Frankel, E. G. (1987). The world shipping industry. Croom Helm.

Chicago Style (17th ed.) Citation

Frankel, Ernst G. The World Shipping Industry. London u.a: Croom Helm, 1987.

MLA (9th ed.) Citation

Frankel, Ernst G. The World Shipping Industry. Croom Helm, 1987.