Παραπομπή APA

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

Παραπομπή Chicago Style

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

Παραπομπή MLA

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