Cita APA (7a ed.)

Hobsbaum, P. (1972). A theory of communication. Macmillan.

Cita Chicago Style (17a ed.)

Hobsbaum, Philip. A Theory of Communication. London [etc.]: Macmillan, 1972.

Cita MLA (9a ed.)

Hobsbaum, Philip. A Theory of Communication. Macmillan, 1972.