MLA

Halperin, Samuel William. The Separation of Church and State In Italian Thought From Cavour to Mussolini. New York: Octagon Books, 1971.

APA

Halperin, S. William. (1971). The separation of church and state in Italian thought from Cavour to Mussolini. New York: Octagon Books.

Chicago

Halperin, Samuel William, The Separation of Church and State In Italian Thought From Cavour to Mussolini. New York: Octagon Books, 1971.