Cita APA (7a ed.)

Ponton, G., & Gill, P. (1993). Introduction to politics (3rd ed.). Blackwell.

Cita Chicago Style (17a ed.)

Ponton, Geoffrey, y Peter Gill. Introduction to Politics. 3rd ed. Oxford: Blackwell, 1993.

Cita MLA (8a ed.)

Ponton, Geoffrey, y Peter Gill. Introduction to Politics. 3rd ed. Blackwell, 1993.