Groom, M.J., Meffe, G.K. and Carroll, C.R. (2006) Principles of Conservation Biology (3rd ed.). Sunderland, MA: Sinauer Associates. Website with additional information: http://www.sinauer.com/groom/Archived 2006년 12월 30일 - 웨이백 머신
Groom, M.J., Meffe, G.K. and Carroll, C.R. (2006) Principles of Conservation Biology (3rd ed.). Sunderland, MA: Sinauer Associates. Website with additional information: http://www.sinauer.com/groom/Archived 2006년 12월 30일 - 웨이백 머신