APA (7th ed.) Citation

Powell, J. M. (1963). Innocent III : vicar of Christ or lord of the world? / edited with an introduction by James M. Powell: Vicar of Christ or lord of the world? D.C. Heath.

Chicago Style (17th ed.) Citation

Powell, James M. Innocent III : Vicar of Christ or Lord of the World? / Edited with an Introduction by James M. Powell: Vicar of Christ or Lord of the World? Boston: D.C. Heath, 1963.

MLA (9th ed.) Citation

Powell, James M. Innocent III : Vicar of Christ or Lord of the World? / Edited with an Introduction by James M. Powell: Vicar of Christ or Lord of the World? D.C. Heath, 1963.

Warning: These citations may not always be 100% accurate.