000
00320nam a2200145Ia 4500
100
_a
Mayer, Richard
020
_a
0-316-55151-1
365
_b
440.7
942
_c
BK
654
_a
245
_a
Educational psychology
260
_a
Toronto
_b
Little, Brown & Company
_c
1947
082
_a
370.15
300
_a
xxviii,578
999
_c
415501
_d
415501
041
_a
eng