Second World Conference on National Parks, Yellowstone and Grand Teton National Park, U.S.A., September 18-27, 1972
Second World Conference on National Parks, Yellowstone and Grand Teton National Park, U.S.A., September 18-27, 1972
The System of equatorial countercurrents in the Ocean = Sistema E'kvatorial'nykh Protivotechenii v Okeane
The System of equatorial countercurrents in the Ocean = Sistema E'kvatorial'nykh Protivotechenii v Okeane
Biotic provinces of the world : further development of a system for defining and classifying natural regions for purposes of conservation
Biotic provinces of the world : further development of a system for defining and classifying natural regions for purposes of conservation
Conservation of major plant communities in Australia and Papua New Guinea / edited by R.L. Specht ... [et.al.]
Conservation of major plant communities in Australia and Papua New Guinea / edited by R.L. Specht ... [et.al.]