APA (7th ed.) Citation

Clark, D. (1970). Letters from the Underground: The Fenian Correspondence of James Gibbons. Philadelphia.

Chicago Style (17th ed.) Citation

Clark, Dennis. Letters from the Underground: The Fenian Correspondence of James Gibbons. Philadelphia, 1970.

MLA (8th ed.) Citation

Clark, Dennis. Letters from the Underground: The Fenian Correspondence of James Gibbons. Philadelphia, 1970.

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