000
00317nam a2200133Ia 4500
008
180816s9999 xx 000 0 und d
082
_a
TRFil500 Sc27
245
0
_a
Science
260
_a
Manila
260
_b
Foundation for upgrading the Standard of Education
300
_a
188 p
650
_a
Science
942
_c
BK
999
_c
51995
_d
51995