Erskine, A. J. (1972). Populations, movements and seasonal distribution of mergansers in northern Cape Breton Island. Information Canada.
Chicago-Zitierstil (17. Ausg.)Erskine, Anthony J. Populations, Movements and Seasonal Distribution of Mergansers in Northern Cape Breton Island. Ottawa: Information Canada, 1972.
MLA-Zitierstil (9. Ausg.)Erskine, Anthony J. Populations, Movements and Seasonal Distribution of Mergansers in Northern Cape Breton Island. Information Canada, 1972.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.