Não informado. Report of the United States Bureau of Commercial Fisheries. U.S. Fish and Wildlife Service.
Citação do estilo Chicago (17ª ed.)Não informado. Report of the United States Bureau of Commercial Fisheries. Washington: U.S. Fish and Wildlife Service.
Citação MLA (8ª ed.)Não informado. Report of the United States Bureau of Commercial Fisheries. U.S. Fish and Wildlife Service.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.