The geography of childhood : why children need wild places / Gary Paul Nabhan, Stephen Trimble ; photogr. by Stephen Trimble ; [introd. by Robert Coles]. - Boston : Beacon press, c.1994. - xxiii, 184 p. : ill. ; 23 cm.см.. - (The Concord library : Psychology/Nature). - ISBN 0-8070-8525-1[MFN: 46234]