000
00286nam a2200121Ia 4500
008
191031s9999 xx 000 0 und d
100
_a
Mouly
245
4
_a
The science of eductional research
260
_b
Eurasia publishing house
260
_c
1964
365
_b
8.00
942
_c
BK
999
_c
199607
_d
199607