Map of the seat of war : showing the battles of July 18th & 21st, 1861 / published by V.P. Corbett.
MLA
Corbett, V. P. Map of the Seat of War : Showing the Battles of July 18th & 21st, 1861 / Published by V.P. Corbett. Lith. by A. Hoen & Co.,, V.P. Corbett ; 1861. https://collections.library.yale.edu/catalog/15604025.
APA, 6th edition
Corbett, V. P. (1861). Map of the seat of war : showing the battles of July 18th & 21st, 1861 / published by V.P. Corbett. [Maps]. Lith. by A. Hoen & Co.,, V.P. Corbett ; https://collections.library.yale.edu/catalog/15604025.