000 00318nam a2200121Ia 4500
008 190927s9999 xx 000 0 und d
082 _a2 On3 1991
100 _aOng, Reynaldo G.
245 0 _aFlourine distribution in the neogene phosphorites, Aurora phosphate distric
260 _b146
260 _c1991
942 _cRB
999 _c6416
_d6416