North American rodents : Status Survey and Conservation Action Plan / compiled and edited by David J. Hafner, Eric Yensen and Gordon L. Kirkland, Jr.
North American rodents : Status Survey and Conservation Action Plan / compiled and edited by David J. Hafner, Eric Yensen and Gordon L. Kirkland, Jr.
Biosphere reserves - myth or reality? : proceedings of a Workshop on Biosphere Reserves [at the IUCN] World Conservation Congress, Montreal, [Canada], 1996
Biosphere reserves - myth or reality? : proceedings of a Workshop on Biosphere Reserves [at the IUCN] World Conservation Congress, Montreal, [Canada], 1996