Cite

Sketch showing a portion of the trenches occupied by Bates' brigade also the Spanish opposing works / drawn from the trenches by Lieutenant Horace Maynard Reeve, 3d Inf. Engineer, Provisional brigade, 5th Corps.

MLA

Sketch Showing a Portion of the Trenches Occupied by Bates' Brigade Also the Spanish Opposing Works / Drawn from the Trenches by Lieutenant Horace Maynard Reeve, 3d Inf. Engineer, Provisional Brigade, 5th Corps. Norris Peters Co. Photo-litho, 0AD. https://collections.library.yale.edu/catalog/15832254.

APA, 6th edition

Sketch showing a portion of the trenches occupied by Bates' brigade also the Spanish opposing works / drawn from the trenches by Lieutenant Horace Maynard Reeve, 3d Inf. Engineer, Provisional brigade, 5th Corps. (0 C.E.). [Maps]. Norris Peters Co. Photo-litho, https://collections.library.yale.edu/catalog/15832254.