Cite

A. Mustard Gas Poisoning. Dog-Death after 7 Days B. Mustard Gas Poisoning. Dog-Death after 4 Days

MLA

Bower, M. L., Lt. A. Mustard Gas Poisoning. Dog-Death after 7 Days B. Mustard Gas Poisoning. Dog-Death after 4 Days. https://collections.library.yale.edu/catalog/15948230.

APA, 6th edition

Bower, M. L., Lt. [A. Mustard Gas Poisoning. Dog-Death after 7 Days B. Mustard Gas Poisoning. Dog-Death after 4 Days]. https://collections.library.yale.edu/catalog/15948230.