APA استشهاد

Barthes, R., & Howard, R. (1982). Empire of signs. Hill and Wang.

استشهاد بنمط شيكاغو

Barthes, Roland, و Richard Howard. Empire of Signs. New York: Hill and Wang, 1982.

MLA استشهاد

Barthes, Roland, و Richard Howard. Empire of Signs. Hill and Wang, 1982.