Little, M. (1976). Ecology, Energetics and Human variability. W.M.C Brown Company.
Čikaški stil citiranja (17. izdanje)Little, Michael. Ecology, Energetics and Human Variability. NULL: W.M.C Brown Company, 1976.
MLA način citiranja (9. izdanje)Little, Michael. Ecology, Energetics and Human Variability. W.M.C Brown Company, 1976.
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