MLA

Magnus, Charles, and playing card maker. Confederate Generals and Statesmen. Chas. Magnus, 0AD. https://collections.library.yale.edu/catalog/33068520.

APA, 6th edition

Magnus, C., & playing card maker. (0 C.E.). Confederate generals and statesmen [Specimens, Biography, Pictorial works, Playing cards, Educational games]. Chas. Magnus. https://collections.library.yale.edu/catalog/33068520.