Lads Before the Wind: Diary of a Dolphin Trainer
by Karen Pryor, Konrad Lorenz
ISBN 13: 9780962401732
Format: Paperback (280 pages) Publisher: Sunshine Books Published: 01 Nov 1975
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Positiv bestärken - sanft erziehen: Der Klassiker zum Clicker-Training
by Karen Pryor
ISBN 13: 9783440156803
Format: Hardcover Publisher: Franckh-Kosmos Published: 07 Sep 2017
How Long Is the Night
ISBN 13: 9781498400954
Format: Paperback (176 pages) Publisher: Xulon Press Published: 20 Jun 2014