000
00292nam a2200121Ia 4500
008
230416s9999||||xx |||||||||||||| ||und||
020
_a
702126500
050
_a
P87.5 .D8 1991
100
_a
Du Plooy, Gertruida M.
245
0
_a
500 communication concepts :
260
_c
1991
942
_2
lcc
_c
BK
999
_c
4489
_d
4489