1999 271 p., 6 figs, 51 tables, paperbound. Extensive English summary (Herring Gulls from the dunes of Schouwen: distribution, mortality and breeding biology).
1999 271 p., 6 figs, 51 tables, paperbound. Ex library Dr. K.H. Voous (with his stamp). Extensive English summary (Herring Gulls from the dunes of Schouwen: distribution, mortality and breeding biology).