Canada. Fisheries and Marine Service & Hatfield, C. T. (1972). Fish resources of the Mackenzie river valley. Environment Canada, Fisheries Service.
Citação do estilo Chicago (17ª ed.)Canada. Fisheries and Marine Service e C. T. Hatfield. Fish Resources of the Mackenzie River Valley. Winnipeg: Environment Canada, Fisheries Service, 1972.
Citação MLA (8ª ed.)Canada. Fisheries and Marine Service e C. T. Hatfield. Fish Resources of the Mackenzie River Valley. Environment Canada, Fisheries Service, 1972.
Nota: a formatação da citação pode não corresponder 100% ao definido pela respectiva norma.