00284nam a2200097Ia 4500008004100000082001500041100002400056245005300080260004500133300000800178190710s9999    xx            000 0 und d  a153.4 L373  aLaurendeau, Monique 0aDevelopment of the concept of space in the child  aNew yorkbInternational Universityc1970  a465