Cita APA (7th ed.)

CUMMINGS, M. C., & David Wise [joint Author]. (1981). Democracy under pressure: An introduction to the American political system (4th ed.). Harcourt Brace Jovanovich.

Cita Chicago (17th ed.)

CUMMINGS, Milton C., i David Wise [joint Author]. Democracy Under Pressure: An Introduction to the American Political System. 4th ed. New York: Harcourt Brace Jovanovich, 1981.

Cita MLA (9th ed.)

CUMMINGS, Milton C., i David Wise [joint Author]. Democracy Under Pressure: An Introduction to the American Political System. 4th ed. Harcourt Brace Jovanovich, 1981.