000			00400nam a2200133Ia 4500
008			220620s9999||||xx |||||||||||||| ||und||
020			_a9780260000000
100			_aBurghardt, Gordon M.
245		4	_aThe Genesis of Animal Play _bTesting the Limits
546			_aEnglish[eng]
650			_aCognition and cognitive psychology
856			_uhttps://doi.org/10.7551/mitpress/3229.001.0001
942			_cEB
999			_c29637 _d29637