State of Illinois / [cartographic material] / compiled from the official records of the General Land Office and other sources by C. Roeser, principal draughtsman G.L.O.
MLA
Roeser, C. (Charles). State of Illinois / [cartographic material] / compiled from the official records of the General Land Office and other sources by C. Roeser, principal draughtsman G.L.O.. BRBL_00547. 1878. https://collections.library.yale.edu/catalog/15814401.
APA, 6th edition
Roeser, C. (Charles). (["BRBL_00547"])(1878)[State of Illinois / [cartographic material] / compiled from the official records of the General Land Office and other sources by C. Roeser, principal draughtsman G.L.O.]. https://collections.library.yale.edu/catalog/15814401.