Não informado. (1964). Leaflet series. Florida State Board of Conservation, Marine Laboratory.
Chicago-referens (17:e uppl.)Não informado. Leaflet Series. St. Petersburg, Fla: Florida State Board of Conservation, Marine Laboratory, 1964.
MLA-referens (8:e uppl.)Não informado. Leaflet Series. Florida State Board of Conservation, Marine Laboratory, 1964.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.