APA (7th ed.) Citation

Burg, D. F., & Purcell, L. E. (1998). Almanac of World War I. University Press of Kentucky.

Chicago Style (17th ed.) Citation

Burg, David F., and L. Edward Purcell. Almanac of World War I. Lexington, Ky.: University Press of Kentucky, 1998.

MLA (9th ed.) Citation

Burg, David F., and L. Edward Purcell. Almanac of World War I. University Press of Kentucky, 1998.