APA (7th ed.) Citation

Seamanship International Ltd. (2006). Passage planning principles. Witherbys Seamanship International.

Chicago Style (17th ed.) Citation

Seamanship International Ltd. Passage Planning Principles. London Lanarkshire: Witherbys Seamanship International, 2006.

MLA (9th ed.) Citation

Seamanship International Ltd. Passage Planning Principles. Witherbys Seamanship International, 2006.

Warning: These citations may not always be 100% accurate.