MLA

Woodruff, Thomas Mayhew, d. 1899. Map showing a portion of the marches of troops under Genl. N.A. Miles command 1876-1878 / drawn by Thom. M. Woodruff, Lt. 5th Inftry A.A.D.C., March 1st 1878.. BRBL_00579. 187-?]. https://collections.library.yale.edu/catalog/15814911.

APA, 6th edition

Woodruff, Thomas Mayhew, d. 1899. (["BRBL_00579"])(187-?])[Map showing a portion of the marches of troops under Genl. N.A. Miles command 1876-1878 / drawn by Thom. M. Woodruff, Lt. 5th Inftry A.A.D.C., March 1st 1878.]. https://collections.library.yale.edu/catalog/15814911.