erc:
who: Hargrove, Eugene C., 1944-
what: Foundations of Environmental Ethics
when: 1989
where: https://digital.library.unt.edu/ark:/67531/metadc52172/
erc-support:
who: University of North Texas Libraries
what: Permanent: Stable Content:
when: 20081203
where: https://digital.library.unt.edu/ark:/67531/