Cita APA (7th ed.)

Porter, M., Mucha, P., Newman, M., & Friend, A. (2007). Community structure in the United States House of Representatives.

Cita Chicago (17th ed.)

Porter, M., P. Mucha, M. Newman, i A. Friend. Community Structure in the United States House of Representatives. 2007.

Cita MLA (9th ed.)

Porter, M., et al. Community Structure in the United States House of Representatives. 2007.