Cita APA (7th ed.)

Kahn, H. (1976). The next 200 years : a scenario for: America and the world. William Morrow.

Cita Chicago (17th ed.)

Kahn, Herman. The Next 200 Years : A Scenario for: America and the World. New York: William Morrow, 1976.

Cita MLA (9th ed.)

Kahn, Herman. The Next 200 Years : A Scenario for: America and the World. William Morrow, 1976.