APA (7th ed.) Citation

Johnson, T. L. (1909). Twenty-eight years a slave, or, The story of my life in three continents. W. Mate and Sons, Limited.

Chicago Style (17th ed.) Citation

Johnson, Thomas L. Twenty-eight Years a Slave, or, The Story of My Life in Three Continents. Bournemouth: W. Mate and Sons, Limited, 1909.

MLA (9th ed.) Citation

Johnson, Thomas L. Twenty-eight Years a Slave, or, The Story of My Life in Three Continents. W. Mate and Sons, Limited, 1909.