Dyfyniad APA

Kahn, H., Brown, W. M., & Martel, L. (1976). The next 200 years: A scenario for America and the world. Morrow.

Dyfyniad Arddull Chicago

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

Dyfyniad MLA

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

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.