Lua APA (7ú heag.)
ebrary, Inc, & Ruttan, V. W. (1994). Agriculture, environment, and health: Sustainable development in the 21st century. University of Minnesota Press.
Lua i Stíl Chicago (17ú heag.)
ebrary, Inc, agus Vernon W. Ruttan. Agriculture, Environment, and Health: Sustainable Development in the 21st Century. Minneapolis: University of Minnesota Press, 1994.
Lua MLA (9ú heag.)
ebrary, Inc, agus Vernon W. Ruttan. Agriculture, Environment, and Health: Sustainable Development in the 21st Century. University of Minnesota Press, 1994.
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