APA

Boak A. E. R., Sinnigen W. G., . (1921). A history of Rome to A.D. 565. New York: Macmillan.

Chicago

Boak Arthur Edward Romilly, Sinnigen William Gurnee, . 1921. A history of Rome to A.D. 565. New York: Macmillan.

Harvard

Boak A. E. R., Sinnigen W. G., . (1921). A history of Rome to A.D. 565. New York: Macmillan.

MLA

Boak Arthur Edward Romilly, Sinnigen William Gurnee, . A history of Rome to A.D. 565. New York: Macmillan. 1921.