APA (7th ed.) Citation

British Ports Association. (1981). Hydrographic surveying in small ports: Guidance notes. British Ports Association.

Chicago Style (17th ed.) Citation

British Ports Association. Hydrographic Surveying in Small Ports: Guidance Notes. [London]: British Ports Association, 1981.

MLA (9th ed.) Citation

British Ports Association. Hydrographic Surveying in Small Ports: Guidance Notes. British Ports Association, 1981.