Aldrich, M., Billington, C., Bryant, D., Kapos, V., & Luxmoore, R. (1996). Developing indicators of habitat condition and vulnerability: Report on an world resources institute/world conservation monitoring center workshop and subsequent research : a working draft paper 26 october 1995. [Lugar de publicación no identificado]: World Resources Institute.

Aldrich, Mark, Clare Billington, Dirk Bryant, Valerie Kapos, and Richard Luxmoore. Developing Indicators of Habitat Condition and Vulnerability: Report On an World Resources Institute/world Conservation Monitoring Center Workshop and Subsequent Research : A Working Draft Paper 26 October 1995. [Lugar de publicación no identificado]: World Resources Institute, 1996.

Aldrich, Mark, et al. Developing Indicators of Habitat Condition and Vulnerability: Report On an World Resources Institute/world Conservation Monitoring Center Workshop and Subsequent Research : A Working Draft Paper 26 October 1995. [Lugar de publicación no identificado]: World Resources Institute, 1996.