Report of operations of the U.S. Lake Survey under appropiation "Preservation of Niagara falls" June 29, 1906 to June 29, 1911
Forente Stater
Bok Engelsk 1911
| Utgitt | [S.l.] : s.n.] , [1911?]
|
|---|---|
| Omfang | S. 7-16
|
| Opplysninger | Særtrykk av: Preservation of Niagara Falls ... additional information, 1911
|
| Emner |
