TY  - BOOK
AU  - Grover,Nathan C.
AU  - Hoit,W.G.
AU  - Covert,C.C.
AU  - Pierce,C.H.
TI  - Surface water supply of the United States 1919-1920 : : Part IV. St. Lawrence River Basin
PY  - 1923///
CY  - Washington, D.C.
PB  - Government Printing Office
N1  - Impreso
ER  -