Eisenberg, JF; McKay, G. M.Comparison of ungulate adaptations in the new world and the old world tropical forests with special reference to Ceylon and the rainforests of Central America // The behaviour of ungulates and its relation to management (англ.) / Geist, V; Walther, F.. — Morges, Switzerland: International Union for Conservation of Nature and Natural Resources, 1974. — P. 584—602. Архивировано 12 февраля 2020 года.
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Eisenberg, JF; McKay, G. M.Comparison of ungulate adaptations in the new world and the old world tropical forests with special reference to Ceylon and the rainforests of Central America // The behaviour of ungulates and its relation to management (англ.) / Geist, V; Walther, F.. — Morges, Switzerland: International Union for Conservation of Nature and Natural Resources, 1974. — P. 584—602. Архивировано 12 февраля 2020 года.
