APA (7th ed.) Citation

John Henry Newman, S. (1891). Historical sketches. Longmans, Green.

Chicago Style (17th ed.) Citation

John Henry Newman, Santo. Historical Sketches. London [etc.]: Longmans, Green, 1891.

MLA (9th ed.) Citation

John Henry Newman, Santo. Historical Sketches. Longmans, Green, 1891.

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