Cita APA

Shafer, B. E. 1., & Spady, R. H. 1. (2014). The American political landscape. Cambridge, Massachusetts: Harvard University Press.

Citación estilo Chicago

Shafer, Byron E. 1947-, y Richard Henry 1952- Spady. The American Political Landscape. Cambridge, Massachusetts: Harvard University Press, 2014.

Cita MLA

Shafer, Byron E. 1947-, y Richard Henry 1952- Spady. The American Political Landscape. Cambridge, Massachusetts: Harvard University Press, 2014.