Mitchell, J. G. (1970). Ecotactics: The sierra club handbook for envionment activists. New York: Pocket Books.
Čikaški stil citiranjaMitchell, John G. Ecotactics: The Sierra Club Handbook for Envionment Activists. New York: Pocket Books, 1970.
MLA način citiranjaMitchell, John G. Ecotactics: The Sierra Club Handbook for Envionment Activists. New York: Pocket Books, 1970.
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