TY - BOOK AU - Sainsbury,C.L. ED - Geological Survey (U.S.) TI - Cassiterite in gold placers at Humboldt Creek Serpentine-Kougarok area, Seward Peninsula, Alaska T2 - Circular, AV - QE75 .C5 no. 565 PY - 1968/// CY - Washington PB - [U.S. Govt. Print. Off.] KW - Cassiterite KW - Gold ores KW - Alaska N1 - With : Occurrences of gold and other metals in the Upper Chulitna District, Alaska / by C.C. Hawley and Allen L. Clark. Washington : [U.S. Govt. Print. Off.], 1968. Bound together subsequent to publication; Bibliography: p. 7 ER -