Cite

Two miles around the pendulum station on Hoosac Mountain near central shaft of tunnel, Massachusetts, 1874.

MLA

McClintock, W. E. Two Miles around the Pendulum Station on Hoosac Mountain near Central Shaft of Tunnel, Massachusetts, 1874. U.S. Coast Survey, 1875. https://collections.library.yale.edu/catalog/15654639.

APA, 6th edition

McClintock, W. E. (1875). Two miles around the pendulum station on Hoosac Mountain near central shaft of tunnel, Massachusetts, 1874. [Maps]. U.S. Coast Survey, https://collections.library.yale.edu/catalog/15654639.