APA

Kaplan J., . (1966). Mr. Clemens and Mark Twain. New York, NY [u.a.]: Simon & Schuster.

Chicago

Kaplan Justin, . 1966. Mr. Clemens and Mark Twain. New York, NY [u.a.]: Simon & Schuster.

Harvard

Kaplan J., . (1966). Mr. Clemens and Mark Twain. New York, NY [u.a.]: Simon & Schuster.

MLA

Kaplan Justin, . Mr. Clemens and Mark Twain. New York, NY [u.a.]: Simon & Schuster. 1966.