Cita APA (7a ed.)

Kahn, H., & Bruce-Briggs, B. (1972). Things to come: Thinking about the seventies and eighties. Macmillan Company.

Cita Chicago Style (17a ed.)

Kahn, Herman, y B. Bruce-Briggs. Things to Come: Thinking About the Seventies and Eighties. New York: Macmillan Company, 1972.

Cita MLA (9a ed.)

Kahn, Herman, y B. Bruce-Briggs. Things to Come: Thinking About the Seventies and Eighties. Macmillan Company, 1972.