APA (7th ed.) Citation

Rasmussen, R. K. (2013). Dear Mark Twain: Letters From His Readers.

Chicago Style (17th ed.) Citation

Rasmussen, R. Kent. Dear Mark Twain: Letters From His Readers. 2013.

MLA (9th ed.) Citation

Rasmussen, R. Kent. Dear Mark Twain: Letters From His Readers. 2013.

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