Waterfowl in Estonia : a contribution to the fifteenth International Ornithological Congress, The Hague, August 1970
1970
Marine birds
Birds of the Baltic region : proceedings of the fourth Baltic Ornitological Conference
1968
Spuris, Z. D. |
Arctic summer : birds in North Norway
1979
Vaughan, Richard |
La avifauna del delta del Ebro en primavera-verano
1971
Maluquer, S. |
Observations sur les oiseaux de mer nicheurs en Corse : saison 1980
1980
Guyot, Isabelle |
Miege, Denis |
Birds of St. Kilda
1978
Harris, Michael Philip |
Murray, Stuart |
The seabirds of Britain and Ireland
1974
Cramp, Stanley |
Bourne, W. R. P. (William Richmond Postle) |
Saunders, Denis A. |
Seabirds in the North Sea : final report
1987
Tasker, Mark L. |