000 00646nam a2200241Ia 4500
001 51911
003 BIBL
005 20171207085053.0
008 710922s1971 cau b 00000 eng
010 _a 71142371
020 _a0874841844(pbk)
049 _aEVLG
050 0 _aLB1025.2
_b.N9
082 _a371.1/02
100 1 0 _aNyberg, David
_9259332
_2Local
245 1 0 _aTough and tender learning.
260 0 _aPalo Alto, Calif.
_bNational Press Books
_c[1971]
300 _avi, 186 p.
_c21 cm.
500 _a920306
504 _aBibliography: p. 182-186.
650 0 _aTeaching
_9177322
_2Local
650 0 _9124108
_aLearning
_2Local
999 _c39239
_d39239