Não informado. (1978). Freshwater and aquaculture contents tables. Food and Agriculture Organization of the United Nations.
Citação do estilo Chicago (17ª ed.)Não informado. Freshwater and Aquaculture Contents Tables. Roma: Food and Agriculture Organization of the United Nations, 1978.
Citação MLA (8ª ed.)Não informado. Freshwater and Aquaculture Contents Tables. Food and Agriculture Organization of the United Nations, 1978.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.