Coastal Engineering Research Center (U.S.). An Ocean wave direction gage. Clearinghouse for Federal Scientific & Technical Information.
Lua i Stíl Chicago (17ú heag.)Coastal Engineering Research Center (U.S.). An Ocean Wave Direction Gage. Springfield, Va.: Clearinghouse for Federal Scientific & Technical Information.
Lua MLA (8ú heag.)Coastal Engineering Research Center (U.S.). An Ocean Wave Direction Gage. Clearinghouse for Federal Scientific & Technical Information.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.