Schwiebert, E. (1977). Columbia river salmon and steelhead: Proceedings of a symposium. American Fisheries Society.
Citazione stile Chigago Style (17a edizione)Schwiebert, Ernest. Columbia River Salmon and Steelhead: Proceedings of a Symposium. Washington, D.C: American Fisheries Society, 1977.
Citatione MLA (9a ed.)Schwiebert, Ernest. Columbia River Salmon and Steelhead: Proceedings of a Symposium. American Fisheries Society, 1977.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.