The Waning of Humaneness
by Konrad Lorenz,R.W. Kickert
ISBN 13: 9780044404422
Format: Paperback (256 pages) Publisher: HarperCollins Publishers Ltd Published: 21 Sep 1989
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The Foundations of Ethology
by K. Lorenz,K. Lorenz,R.W. Kickert
ISBN 13: 9783211816233
Format: Hardcover (404 pages) Publisher: Springer Published: 23 Sep 1981