000
00273nam a2200121Ia 4500
008
191031s9999 xx 000 0 und d
100
_a
Boremann
245
0
_a
Discussion and group methods
260
_b
Harper and Row
260
_c
1975
365
_b
14.95
942
_c
BK
999
_c
204822
_d
204822