Cita APA (7th ed.)

Valdes , J., & Crow, J. j. a. (1973). The media works. Celeco Pflaum.

Cita Chicago (17th ed.)

Valdes , Joan, i Jeanne joint auth Crow. The Media Works. New York: Celeco Pflaum, 1973.

Cita MLA (9th ed.)

Valdes , Joan, i Jeanne joint auth Crow. The Media Works. Celeco Pflaum, 1973.