International Council for Bird Preservation, World Working Group on Birds of Prey and Owls, World Conference on Birds of Prey and Owls, Meyburg, B., & Chancellor, R. D. (2000). Raptors at Risk: Proceedings of the V World Conference on Birds of Prey and Owls, Midrand, Johannesburg, South Africa 4 - 11 August 1998. [World Working Group on Birds of Prey and Owls [u.a.].
Chicago-Zitierstil (17. Ausg.)International Council for Bird Preservation, World Working Group on Birds of Prey and Owls, World Conference on Birds of Prey and Owls, Bernd-Ulrich Meyburg, und R. D. Chancellor. Raptors at Risk: Proceedings of the V World Conference on Birds of Prey and Owls, Midrand, Johannesburg, South Africa 4 - 11 August 1998. London: [World Working Group on Birds of Prey and Owls [u.a.], 2000.
MLA-Zitierstil (9. Ausg.)International Council for Bird Preservation, World Working Group on Birds of Prey and Owls, et al. Raptors at Risk: Proceedings of the V World Conference on Birds of Prey and Owls, Midrand, Johannesburg, South Africa 4 - 11 August 1998. [World Working Group on Birds of Prey and Owls [u.a.], 2000.