International Council for Bird Preservation. World Conference, Diamond, A. W. 1., & Filion, F. L. (1987). The Value of birds: Based on the proceedings of a symposium and workshop held at the XIX World Conference of the International Council for Bird Preservation, June 1986, Queens University, Kingston, Ontario, Canada. Cambridge: The Council.
Chicago Style CitationInternational Council for Bird Preservation. World Conference, A. W. 1944- Diamond, and Fern L. Filion. The Value of Birds: Based On the Proceedings of a Symposium and Workshop Held At the XIX World Conference of the International Council for Bird Preservation, June 1986, Queens University, Kingston, Ontario, Canada. Cambridge: The Council, 1987.
MLA CitationInternational Council for Bird Preservation. World Conference, A. W. 1944- Diamond, and Fern L. Filion. The Value of Birds: Based On the Proceedings of a Symposium and Workshop Held At the XIX World Conference of the International Council for Bird Preservation, June 1986, Queens University, Kingston, Ontario, Canada. Cambridge: The Council, 1987.