American Universities Field Staff, California Institute of Technology. Population Program, Brown, H., & Sweezy, A. R. (1973). Population: Perspective, 1973. Freeman.
Citace podle Chicago (17th ed.)American Universities Field Staff, California Institute of Technology. Population Program, Harrison Brown, a Alan Richardson Sweezy. Population: Perspective, 1973. San Francisco: Freeman, 1973.
Citace podle MLA (9th ed.)American Universities Field Staff, et al. Population: Perspective, 1973. Freeman, 1973.
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