APA (7th ed.) Citation

Taylor, B. G. (1891). The sardonyx seal: A romance of Normandy. G.P. Putnam's Sons.

Chicago Style (17th ed.) Citation

Taylor, Belle Gray. The Sardonyx Seal: A Romance of Normandy. New York: G.P. Putnam's Sons, 1891.

MLA (8th ed.) Citation

Taylor, Belle Gray. The Sardonyx Seal: A Romance of Normandy. G.P. Putnam's Sons, 1891.