Kubetzki, Ulrike books & textbook
Migratory Tactics and Wintering Areas of Northern Gannets Breeding in North America (Ornithological Monographs)
Fifield, David A. Montevecchi, William A. Garthe, Stefan Robertson, Gregory J. Kubetzki, Ulrike
Amer Ornithologists Union / Paperback / 63 Pages
isbn-10: 0943610982 / isbn-13: 9780943610986