State of Oklahoma / compiled from the official records of the General Land Office and other sources under the direction of I.P. Berthrong ; compiled by A.F. Dinsmore and M. Hendges ; drawn by Charles J. Helm.
MLA
Office, United States. General Land. State of Oklahoma / Compiled from the Official Records of the General Land Office and Other Sources under the Direction of I.P. Berthrong ; Compiled by A.F. Dinsmore and M. Hendges ; Drawn by Charles J. Helm. General Land Office?], 1907. https://collections.library.yale.edu/catalog/15814882.
APA, 6th edition
Office, U. S. G. L. (1907). State of Oklahoma / compiled from the official records of the General Land Office and other sources under the direction of I.P. Berthrong ; compiled by A.F. Dinsmore and M. Hendges ; drawn by Charles J. Helm. [Maps]. General Land Office?], https://collections.library.yale.edu/catalog/15814882.