Não informado. (1969). Memoirs of the Hourglass Cruises. Florida Department of Natural Resources, Marine Research Laboratory.
Citação do estilo Chicago (17ª ed.)Não informado. Memoirs of the Hourglass Cruises. St. Petersburg, Fla: Florida Department of Natural Resources, Marine Research Laboratory, 1969.
Citação MLA (8ª ed.)Não informado. Memoirs of the Hourglass Cruises. Florida Department of Natural Resources, Marine Research Laboratory, 1969.
警告：這些引文格式不一定是100％准確.