Campaign maps, Army of the Potomac : Map no. 3. White House to Harrison's Landing / prepared by command of Maj. Gen. George B. McClellan [under direction of] A.A. Humphreys, Brig. Gen. and chief of Top. Engrs. ; compiled by Capt. H.L. Abbot, Top. Engrs.
MLA
Campaign Maps, Army of the Potomac : Map No. 3. White House to Harrison's Landing / Prepared by Command of Maj. Gen. George B. McClellan [under Direction of] A.A. Humphreys, Brig. Gen. and Chief of Top. Engrs. ; Compiled by Capt. H.L. Abbot, Top. Engrs. War Dept., 1863. https://collections.library.yale.edu/catalog/15811298.
APA, 6th edition
Campaign maps, Army of the Potomac : Map no. 3. White House to Harrison's Landing / prepared by command of Maj. Gen. George B. McClellan [under direction of] A.A. Humphreys, Brig. Gen. and chief of Top. Engrs. ; compiled by Capt. H.L. Abbot, Top. Engrs. (1863). [Maps]. War Dept. https://collections.library.yale.edu/catalog/15811298.
