Não informado. (1977). Scottish fisheries information pamphlet. Department of Agriculture and Fisheries for Scotland.
Citação do estilo Chicago (17ª ed.)Não informado. Scottish Fisheries Information Pamphlet. Aberdeen, Escocia: Department of Agriculture and Fisheries for Scotland, 1977.
Citação MLA (8ª ed.)Não informado. Scottish Fisheries Information Pamphlet. Department of Agriculture and Fisheries for Scotland, 1977.
Atenció: Aquestes cites poden no estar 100% correctes.