00429nam a2200145Ia 4500008004100000082001500041082000800056245003200064245003000096260003000126300000900156942000800165999001900173952009100192231017s9999    xx            000 0 und d  a370.152NRC  bNRC 0aLearning to think spatially 0cNational Research Council  bNational Research Council  c30cm  cREP  c605058d605058  00104070aNITbNITd2023-10-17l0o370.152NRCpNIT-2948r2023-10-17w2023-10-17yREP