MLA

Hecker, J. F. C, and B.G Babington. The Epidemics of the Middle Ages : From the German of J.f.c. Hecker. Philadelphia: Haswell, Barrington and Haswell, 1837.

APA

Hecker, J. F. C, & Babington, B. (1837). The epidemics of the middle ages : From the German of J.F.C. Hecker. Philadelphia: Haswell, Barrington and Haswell.

Chicago

Hecker, J. F. C. The Epidemics of the Middle Ages: From the German of J.F.C. Hecker. Translated by B.G. Babington. Philadelphia: Haswell, Barrington and Haswell, 1837.