APA (7th ed.) Citation

Doyle, C. A., & Black, W. S. (1900). The two bears. G. Waterston & Sons.

Chicago Style (17th ed.) Citation

Doyle, Charles Altamont, and William S. Black. The Two Bears. Edinburgh: G. Waterston & Sons, 1900.

MLA (9th ed.) Citation

Doyle, Charles Altamont, and William S. Black. The Two Bears. G. Waterston & Sons, 1900.