Owls - ambassadors for the protection of nature - in their changing landscapes : proceedings of the Fourth World Owl Conference, 31 October-4 November 2007, Groningen, The Netherlands

edited by David H. Johnson, Dries Van Nieuwenhuyse and James R. Duncan
Bok · Engelsk · 2009 World Owl Conference

Utgitt	Amsterdam : Nederlandse Ornithologische Unie , 2009
Omfang	VIII s., s. 396-650 : ill.