MLA

Crawford, James M. Pocket diary, White, John G., b. 1830. John G. White diaries, 1859-1863. 1863 January 1-December 31. https://collections.library.yale.edu/catalog/10616846.

APA, 6th edition

Crawford, James M. Pocket diary, & White, John G., b. 1830. (1863 January 1-December 31)[John G. White diaries, 1859-1863]. https://collections.library.yale.edu/catalog/10616846.