Não informado. HO publications. U.S. Navy Department, Hydrographic Office.
Παραπομπή σε μορφή Chicago (17η εκδ.)Não informado. HO Publications. Washington: U.S. Navy Department, Hydrographic Office.
Παραπομπή σε μορφή MLA (8th εκδ.)Não informado. HO Publications. U.S. Navy Department, Hydrographic Office.
Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.