Geochemical association of niobium (columbium) and titanium and its geological and economic significance,
Fleischer, Michael, 1908-
Geochemical association of niobium (columbium) and titanium and its geological and economic significance, by Michael Fleischer [and others] - Washington, 1952. - 13 p. tables. 27 cm. - Geological Survey circular 225 .
Erratum slip inserted.
"Literature cited": p. 9-10.
gs 53000085
Niobium.
Titanium.
QE75 / .C5 no. 225
553.49
Geochemical association of niobium (columbium) and titanium and its geological and economic significance, by Michael Fleischer [and others] - Washington, 1952. - 13 p. tables. 27 cm. - Geological Survey circular 225 .
Erratum slip inserted.
"Literature cited": p. 9-10.
gs 53000085
Niobium.
Titanium.
QE75 / .C5 no. 225
553.49