Clemens, C. (1931). My father Mark Twain: Illustrated from family photographs with hitherto unpublished letters of Mark Twain / by Clara Clemens (5. print.). Harper.
Citação do estilo Chicago (17ª ed.)Clemens, Clara. My Father Mark Twain: Illustrated from Family Photographs with Hitherto Unpublished Letters of Mark Twain / by Clara Clemens. 5. print. New York [u.a.]: Harper, 1931.
Citação MLA (8ª ed.)Clemens, Clara. My Father Mark Twain: Illustrated from Family Photographs with Hitherto Unpublished Letters of Mark Twain / by Clara Clemens. 5. print. Harper, 1931.
Nota: a formatação da citação pode não corresponder 100% ao definido pela respectiva norma.