Martin, P. R., & Dilabio, B. M. (1994). Natural hybrids between the Common Goldeneye, Bucephala clangula, and Barrow's Goldeneye, B. islandica. Zenodo.
Chicago-viite (17. p.)Martin, Paul R., ja Bruce M. Dilabio. Natural Hybrids Between the Common Goldeneye, Bucephala Clangula, and Barrow's Goldeneye, B. Islandica. Zenodo, 1994.
MLA-viite (9. p.)Martin, Paul R., ja Bruce M. Dilabio. Natural Hybrids Between the Common Goldeneye, Bucephala Clangula, and Barrow's Goldeneye, B. Islandica. Zenodo, 1994.
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