Cite

A map of Isaac Cowgill's plantation : contain two hundred & seven acres and twenty perches / by Jno. Oliver.

MLA

A Map of Isaac Cowgill's Plantation : Contain Two Hundred & Seven Acres and Twenty Perches / by Jno. Oliver. 0AD. https://collections.library.yale.edu/catalog/15830229.

APA, 6th edition

A map of Isaac Cowgill's plantation : contain two hundred & seven acres and twenty perches / by Jno. Oliver. (0 C.E.). [Manuscript maps]. https://collections.library.yale.edu/catalog/15830229.