Gaya APA

FNI, C, H, H. (2003). Tug Use in Port : A Practical Guide (2 Edition 2003). London: The Nautical Institute.

Gaya MLA

FNI, Captain, Henk, Hensen,. "Tug Use in Port : A Practical Guide". 2 Edition 2003 London: The Nautical Institute, 2003. Text.