Gould, W. T. S. (1986). planing for population change (1st edition.). Croom Helm.
Chicago-čujuhus (17. p.)Gould, W T S. Planing for Population Change. 1st edition. London: Croom Helm, 1986.
MLA-čujuhus (9. p.)Gould, W T S. Planing for Population Change. 1st edition. Croom Helm, 1986.
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