Pudd'nhead Wilson, and Those extraordinary twins,
by Mark Twain. With an introd., a note on the text, and a bibliography prepared by Frederick Anderson.

APA Citation

Twain, M. (1968). Pudd'nhead Wilson, and Those extraordinary twins. San Francisco: Chandler Pub. Co.; Science Research Associates, distributors, Chicago.

MLA Citation

Twain, Mark, 1835-1910. Pudd'nhead Wilson, And Those Extraordinary Twins. San Francisco: Chandler Pub. Co.; Science Research Associates, distributors, Chicago, 1968.

Warning: These citations may not always be complete (especially for serials).