ISBN 9781362118442 books & textbook
The Falls of Niagara: Their Evolution and Varying Relations to the Great Lakes; Characteristics of the Power, and the Effects of Its Diversion
Spencer, J. W. (Joseph William) 1851-19 Canada. Geological Survey Branch
Wentworth Press /2016-08-26 Hardcover / 530 Pages
isbn-10: 1362118443 / isbn-13: 9781362118442
