APA (7th ed.) Citation

Twain, M. (1903). Sketches new and old. Harper & brothers.

Chicago Style (17th ed.) Citation

Twain, Mark. Sketches New and Old. New York, London: Harper & brothers, 1903.

MLA (9th ed.) Citation

Twain, Mark. Sketches New and Old. Harper & brothers, 1903.

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