MLA

Baird, Spruce M. (Spruce McCoy), 1814-1872. Diary of a journey from Serbin, Bastrop Co., Texas to Trinidad, Colorado Territory, 1867 June 6-28 / by S. M. Baird [Transcript]. Box 1 | Folder: Transcript. https://collections.library.yale.edu/catalog/10577044.

APA, 6th edition

Baird, Spruce M. (Spruce McCoy), 1814-1872. (["Box 1 | Folder: Transcript"])[Diary of a journey from Serbin, Bastrop Co., Texas to Trinidad, Colorado Territory, 1867 June 6-28 / by S. M. Baird [Transcript]]. https://collections.library.yale.edu/catalog/10577044.