Não informado. (1983). South african journal of marine science. Sea Fisheries Research Institute.
Chicago-referens (17:e uppl.)Não informado. South African Journal of Marine Science. Cape Town, Africa do Sul: Sea Fisheries Research Institute, 1983.
MLA-referens (8:e uppl.)Não informado. South African Journal of Marine Science. Sea Fisheries Research Institute, 1983.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.