Cita APA (7a ed.)

Douglas, M. (1992). Objects and objections. Toronto Semiotic Circle.

Cita Chicago Style (17a ed.)

Douglas, Mary. Objects and Objections. Toronto: Toronto Semiotic Circle, 1992.

Cita MLA (9a ed.)

Douglas, Mary. Objects and Objections. Toronto Semiotic Circle, 1992.