APA (7th ed.) Citation

Smith, C. W. (1991). The great hunger: Ireland: 1845-1849. Penguin books.

Chicago Style (17th ed.) Citation

Smith, Cecil Woodham. The Great Hunger: Ireland: 1845-1849. England: Penguin books, 1991.

MLA (9th ed.) Citation

Smith, Cecil Woodham. The Great Hunger: Ireland: 1845-1849. Penguin books, 1991.

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