Goose populations of the western palearctic : a review of status and distribution
1999
Cracknell, Gill |
Fox, Tony |
Geese
Loch Leven : national nature reserve. A study of waterfowl biology
1974
Allison, Allan |
Newton, Ian |
Campbell, Colin |
The world of the Canada goose
1968
Van Wormer, Joe |
Die Wildgänse Nordeurasiens
1965
Uspenskiĭ, S. M. (Savva Mikhaĭlovich) |