APA (7th ed.) Citation

Confederate States of America. Bureau of Conscription, Cooper, S., Preston, J. S., & Duffield, C. B. (1863). Circular. [publisher not identified].

Chicago Style (17th ed.) Citation

Confederate States of America. Bureau of Conscription, Samuel Cooper, John Smith Preston, and C. B. Duffield. Circular. [Richmond]: [publisher not identified], 1863.

MLA (9th ed.) Citation

Confederate States of America. Bureau of Conscription, et al. Circular. [publisher not identified], 1863.