TY - BOOK AU - Marshall,Ernest W. TI - Lake Superior ice characteristics T2 - Miscellaneous paper - U.S. Lake Survey ; 68-4 AV - GB1798.4.S8 M3 PY - 1968/// CY - Detroit PB - Dept. of the Army, Lake Survey District, Corps of Engineers KW - Ice on rivers, lakes, etc KW - Superior, Lake N1 - Cover title; Part of the proceedings of the tenth conference on Great Lakes Research, 1967; "References": p. 220 ER -