1. The trap dikes of the lake Champlain region Author/Creator: Kemp, James Furman, 1859-1926, author Publication/Creation: Washington, D.C. : Department of the Interior, United States Geological Survey, 1893 Resource Type: Book Access & Availability: Loading
2. The trap dikes of the lake Champlain region Author/Creator: Kemp, James Furman, 1859-1926 Publication/Creation: Washington : Govt. Print. Off, 1893 Resource Type: Book Is Part Of: U.S. Geological Survey bulletin, no. 107-117. Access & Availability: Loading