APA
O'Brien J. A., . (1954). Roads to Rome. N.Y: Macmillan.
Chicago
O'Brien John Anthony, . 1954. Roads to Rome. N.Y: Macmillan.
Harvard
O'Brien J. A., . (1954). Roads to Rome. N.Y: Macmillan.
MLA
O'Brien John Anthony, . Roads to Rome. N.Y: Macmillan. 1954.