Brown, L. R., Gardner, G. T., Halweil, B., & Starke, L. (1998). Beyond Malthus: Sixteen dimensions of the population problem. Worldwatch Institute.
Chicago-viite (17. p.)Brown, Lester Russell, Gary T. Gardner, Brian Halweil, ja Linda Starke. Beyond Malthus: Sixteen Dimensions of the Population Problem. Washington, DC: Worldwatch Institute, 1998.
MLA-viite (8. p.)Brown, Lester Russell, et al. Beyond Malthus: Sixteen Dimensions of the Population Problem. Worldwatch Institute, 1998.
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