State of Iowa / Department of the Interior, General Land Office, J.A. Williamson, Commissioner ; compiled from the official records of the General Land Office and other sources by C. Roeser, Principal Draughtsman, G.L.O.
MLA
Office, United States. General Land. State of Iowa / Department of the Interior, General Land Office, J.A. Williamson, Commissioner ; Compiled from the Official Records of the General Land Office and Other Sources by C. Roeser, Principal Draughtsman, G.L.O. General Land Office, 1878. https://collections.library.yale.edu/catalog/15814616.
APA, 6th edition
Office, U. S. G. L. (1878). State of Iowa / Department of the Interior, General Land Office, J.A. Williamson, Commissioner ; compiled from the official records of the General Land Office and other sources by C. Roeser, Principal Draughtsman, G.L.O. [Maps]. General Land Office, https://collections.library.yale.edu/catalog/15814616.
