The sign of the four /
By A. Conan Doyle.

APA Citation

Doyle, A. Conan. (189). The sign of the four. New York: W. L. Allison co..

MLA Citation

Doyle, Arthur Conan, 1859-1930. The Sign of the Four. New York: W. L. Allison co., 189.

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