APA (7th ed.) Citation

Rasmussen, R. K. (2010). Mark Twain. Salem Press.

Chicago Style (17th ed.) Citation

Rasmussen, R. Kent. Mark Twain. Pasadena, Calif.: Salem Press, 2010.

MLA (9th ed.) Citation

Rasmussen, R. Kent. Mark Twain. Salem Press, 2010.

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