Ecological principles for economic development [by] Raymond F. Dasmann, John P. Milton [and] Peter H. FreemanRaymond Fredric Dasmann · First published 1973Open the Tome
A system for defining and classifying natural regions for purposes of conservationRaymond Fredric Dasmann · First published 1973Open the Tome
Classification and use of protected natural and cultural areasRaymond Fredric Dasmann · First published 1973Open the Tome
Ecological principles for economic developmentRaymond Fredric Dasmann · First published 1973Open the Tome
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