Map of the abounty Lands in Illinois Territory by John Gardiner.
MLA
Map of the Abounty Lands in Illinois Territory by John Gardiner. John Gardiner, 0AD. https://collections.library.yale.edu/catalog/15814392.
APA, 6th edition
Map of the abounty Lands in Illinois Territory by John Gardiner. (0 C.E.). [Maps]. John Gardiner, https://collections.library.yale.edu/catalog/15814392.