Saving Biological Diversity: Balancing Protection of Endangered Species and Ecosystems By Robert A. Askins, Glenn D. Dreyer, Gerald R. Visgilio, Diana M. Whitelaw 2008 | 236 Pages | ISBN: 0387095667 | PDF | 6 MB
Biological Diversity: Balancing Interests Through Adaptive Collaborative Management by Louise E. Buck, Charles C. Geisler, John Schelhas and Eva Wollenberg English | June 21, 2001 | ISBN-10: 0849300207 | 504 pages | PDF | 19,7 MB
Biological Diversity : The Oldest Human Heritage (Educational Leaflet (New York State Museum), No. 34.) By Edward O. Wilson 1999 | 58 Pages | ISBN: 1555572103 | PDF | 3 MB
Human Population: Its Influences on Biological Diversity By Richard P. Cincotta, L. J. Gorenflo (auth.), Richard P. Cincotta, Larry J. Gorenflo (eds.) 2011 | 244 Pages | ISBN: 3642167063 | PDF | 5 MB