APA
Burman Å., Lighthouse Maritime Competence Centre C., . (2013010120161231). Lighthouse. : Sjöfartsverket.
Chicago
Burman Åsa, Lighthouse Maritime Competence Centre Centrumbildning, . 2013010120161231. Lighthouse. : Sjöfartsverket.
Harvard
Burman Å., Lighthouse Maritime Competence Centre C., . (2013010120161231). Lighthouse. : Sjöfartsverket.
MLA
Burman Åsa, Lighthouse Maritime Competence Centre Centrumbildning, . Lighthouse. : Sjöfartsverket. 2013010120161231.