Style de citation APA (7e éd.)

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

Style de citation Chicago (17e éd.)

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

Style de citation MLA (8e éd.)

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