Παραπομπή σε μορφή APA (7η εκδ.)

Nettle, S. A. (1988). Port operations and shipping: A guide to ports and related aspects of the shipping industry. Lloyd's of London Press.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Nettle, Stanley A. Port Operations and Shipping: A Guide to Ports and Related Aspects of the Shipping Industry. London: Lloyd's of London Press, 1988.

Παραπομπή σε μορφή MLA (9th εκδ.)

Nettle, Stanley A. Port Operations and Shipping: A Guide to Ports and Related Aspects of the Shipping Industry. Lloyd's of London Press, 1988.