Butz, W. P. (1982). Demographic challenges in America's future. Rand.
Chicagoスタイル(17版)引用形式Butz, William P. Demographic Challenges in America's Future. Sta. Monica, Calif: Rand, 1982.
MLA(9版)引用形式Butz, William P. Demographic Challenges in America's Future. Rand, 1982.
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