Não informado. (1931). Investigational report. U.S. Department of Commerce, Bureau of Fisheries.
Citação do estilo Chicago (17ª ed.)Não informado. Investigational Report. Washington: U.S. Department of Commerce, Bureau of Fisheries, 1931.
Citação MLA (8ª ed.)Não informado. Investigational Report. U.S. Department of Commerce, Bureau of Fisheries, 1931.
Предупреждение: эти цитированмия не могут быть всегда правильны на 100%.