The sign of the four /
by A. Conan Doyle. With Markheim / by Robert Louis Stevenson.

APA Citation

Doyle, A. Conan., Stevenson, R. Louis. (1922). The sign of the four. Racine, Wis.: Whitman Pub. Co..

MLA Citation

Doyle, Arthur Conan, 1859-1930, and Robert Louis Stevenson. The Sign of the Four. Racine, Wis.: Whitman Pub. Co., 1922.

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