Acta XX Congressus Internationalis Ornithologici, Christchurch 1990 Vol.1-4, Suppl.
Acta XX Congressus Internationalis Ornithologici, Christchurch 1990 Vol.1-4, Suppl.
- 2568, 552 S. Ill
0959797556
Vögel Kongreß
0959797556
Vögel Kongreß