000
00249nam a22001097a 4500
003
OSt
008
240201b |||||||| |||| 00| 0 eng d
082
_a
P630.72
_b
J78
245
_a
Journal of Research P.A.U - Vol.18
260
_c
1981
942
_2
ddc
_c
BK
999
_c
36569
_d
36569