Spirit leveling in Connecticut, 1922-35,
[by] J. G. Staack.
- Washington, U.S. Govt. print. off., 1937.
- 1 p. l., 65 p., 1 l. incl. map, tables, pl. 23 cm.
- U.S. Geological Survey. Bulletin 881 .
At head of title: United States Department of the interior. Includes index.