000
002440000a22001210004500
245
_a
Proceedings ...
110
_a
Colombo Plan Bureau
260
_a
Colombo
_c
1966
300
_a
172 p.
080
_a
373.62
_b
C6
041
_a
EN
942
_c
BK
999
_c
97099
_d
97099