Donlan, J. C. (2015). Proactive strategies for protecting species: Pre-listing conservation and the Endangered Species Act. University of California Press.
Chicago-čujuhus (17. p.)Donlan, Josh C. Proactive Strategies for Protecting Species: Pre-listing Conservation and the Endangered Species Act. Oakland, California: University of California Press, 2015.
MLA-čujuhus (9. p.)Donlan, Josh C. Proactive Strategies for Protecting Species: Pre-listing Conservation and the Endangered Species Act. University of California Press, 2015.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.