Cita APA (7th ed.)

Tenney, T. A. (1977). Mark Twain: A reference guide. G.K. Hall & Co.

Cita Chicago (17th ed.)

Tenney, Thomas Asa. Mark Twain: A Reference Guide. Boston, Estados Unidos: G.K. Hall & Co, 1977.

Cita MLA (9th ed.)

Tenney, Thomas Asa. Mark Twain: A Reference Guide. G.K. Hall & Co, 1977.