Barney, G. O. (1977). The unfinished agenda: The citizen's policy guide to environmental issues : a task force report sponsored by the Rockefeller Brothes Fund. New York: Crowell.
Παραπομπή Chicago StyleBarney, Gerald O. The Unfinished Agenda: The Citizen's Policy Guide to Environmental Issues : A Task Force Report Sponsored By the Rockefeller Brothes Fund. New York: Crowell, 1977.
Παραπομπή MLABarney, Gerald O. The Unfinished Agenda: The Citizen's Policy Guide to Environmental Issues : A Task Force Report Sponsored By the Rockefeller Brothes Fund. New York: Crowell, 1977.
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