APA (7th ed.) Citation

Walker, I. M. (1970). Mark Twain / by I.M. Walker. Routledge and Kegan Paul.

Chicago Style (17th ed.) Citation

Walker, I. M. Mark Twain / by I.M. Walker. Routledge and Kegan Paul, 1970.

MLA (9th ed.) Citation

Walker, I. M. Mark Twain / by I.M. Walker. Routledge and Kegan Paul, 1970.

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