APA

Showerman G., . (1948). Rome and the Romans: a survey and interpretation. New York: Macmillan Co.

Chicago

Showerman Grant, . 1948. Rome and the Romans: a survey and interpretation. New York: Macmillan Co.

Harvard

Showerman G., . (1948). Rome and the Romans: a survey and interpretation. New York: Macmillan Co.

MLA

Showerman Grant, . Rome and the Romans: a survey and interpretation. New York: Macmillan Co. 1948.