General Nature in 1974

Ecological Stability by Úshér, Mícháél B., Wíllíámsóń, M. H., University of York

The Animal in Its World (Explorations of an Ethologist, 1932-1972) by Tinbergen, Nikolaas

The Animal in Its World (Explorations of an Ethologist, 1932-1972) by Tinbergen, Nikolaas

Mammals of Kentucky by Barbour, Roger W., Davis, Wayne H.