Não informado. (1969). Alabama marine resources bulletin. Alabama Marine Resources Laboratory.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNão informado. Alabama Marine Resources Bulletin. Dauphin Island, Ala: Alabama Marine Resources Laboratory, 1969.
एमएलए (8वां संस्करण) प्रशस्ति पत्रNão informado. Alabama Marine Resources Bulletin. Alabama Marine Resources Laboratory, 1969.
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