ISBN-13: 9780805822410 / Angielski / Twarda / 1999 / 512 str.
ISBN-13: 9780805822410 / Angielski / Twarda / 1999 / 512 str.
This is a comprehensive, multidisciplinary review of what the author has learned from decades of research on the nature, development and functions of exploration and play in children and animals.