Leopold, Aldo, 1886-1948--Influence.; Right of property--Economic aspects--United States.; Nature conservation--Economic aspects--United States.; Land use--Environmental aspects--United States.; Nature conservation--United States--Philosophy.
Title from PDF title page (viewed June 15, 2010).; Preserved in the OCLC Digital Archive. Harvested from http://www.law.georgetown.edu/gelpi/current_research/documents/RT_Pubs_Policy_Leopold.pdf on June 17, 2010.