The ranks of death, a medical history of the conquest of America ..
MLA
Ashburn, P. M, and Frank Davis Ashburn. The Ranks of Death: a Medical History of the Conquest of America .. New York: Coward-McCann, 1947
APA, 7th edition
Ashburn, P. M, & Ashburn, F. Davis. (1947). The ranks of death: a medical history of the conquest of America .. New York: Coward-McCann
Chicago, 17th edition
Ashburn, P. M., and Frank Davis Ashburn. The ranks of death: a medical history of the conquest of America .. New York: Coward-McCann, 1947