APA (7th ed.) Citation

Gladstone, W. E. (1875). Vaticanism: An answer to reproofs and replies. Harper & Bros..

Chicago Style (17th ed.) Citation

Gladstone, W. E. Vaticanism: An Answer to Reproofs and Replies. New York: Harper & Bros., 1875.

MLA (8th ed.) Citation

Gladstone, W. E. Vaticanism: An Answer to Reproofs and Replies. Harper & Bros., 1875.