The United States of America.
MLA
Colton, J. H., and Co. The United States of America. Published by J.H. Colton & Co., No. 172 William St., 1855. https://collections.library.yale.edu/catalog/16388925.
APA, 6th edition
Colton, J. H., & C. (1855). The United States of America. [Maps.]. Published by J.H. Colton & Co., No. 172 William St., https://collections.library.yale.edu/catalog/16388925.