000 00226 a2200109 4500
080 _a541.18
_bH 453 C
245 1 _aColloids
_cby E.S. Hedges
260 _c1931
650 _aColloids
100 1 _aHedges, E.S.
_d
901 _a2868
999 _c26683
_d26683