Morrison, P. A. (1972). Dimensions of the population problem in the United States. Rand.
Lua i Stíl Chicago (17ú heag.)Morrison, Peter A. Dimensions of the Population Problem in the United States. California: Rand, 1972.
Lua MLA (9ú heag.)Morrison, Peter A. Dimensions of the Population Problem in the United States. Rand, 1972.
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