Ecological studies of the mute swan (Cygnus olor) in southeastern Sweden 1963 Berglund, Björn E. | Curry-Lindahl, Kai |
Ecology of arable land : organisms, carbon and nitrogen cycling 1990 Andrén, Olof | Torbjörn, Lindberg | Paustian, Keith | Rosswall, T. (Thomas) |
Coastal and marine protected areas in the Baltic Sea region. Background report to the Seminar on the establishment, protection and effective management of coastal and marine protected areas in the Baltic Sea region 1993 Hägerhäll Aniansson, Britt |
A new partnership for African development : issues and parameters 1997 Kifle, Henock | Olukoshi, Adebayo | Wohlgemuth, Lennart |