Cita APA (7th ed.)

Butz, W. P. (1982). Demographic challenges in America's future. Rand.

Cita Chicago (17th ed.)

Butz, William P. Demographic Challenges in America's Future. Sta. Monica, Calif: Rand, 1982.

Cita MLA (9th ed.)

Butz, William P. Demographic Challenges in America's Future. Rand, 1982.