Map of the harbors of Puget Sound and Cowlitz Valley, Washington Territory : from the United States land surveys / engraved, printed and manufactured by G.W. & C.B. Colton & Co.
MLA
G. W., et al. Map of the Harbors of Puget Sound and Cowlitz Valley, Washington Territory : from the United States Land Surveys / Engraved, Printed and Manufactured by G.W. & C.B. Colton & Co. G.W. & C.B. Colton & Co., 1870. https://collections.library.yale.edu/catalog/15821652.
APA, 6th edition
G. W., Colton, C. B., & C. (1870). Map of the harbors of Puget Sound and Cowlitz Valley, Washington Territory : from the United States land surveys / engraved, printed and manufactured by G.W. & C.B. Colton & Co. [Maps]. G.W. & C.B. Colton & Co., https://collections.library.yale.edu/catalog/15821652.
