Sandbach, F. (1980). Environment, ideology, and policy. Allanheld, Osmun.
Lua i Stíl Chicago (17ú heag.)Sandbach, Francis. Environment, Ideology, and Policy. Montclair, N.J.: Allanheld, Osmun, 1980.
Lua MLA (9ú heag.)Sandbach, Francis. Environment, Ideology, and Policy. Allanheld, Osmun, 1980.
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