Brown, L. R., Gardner, G. T., Halweil, B., & Starke, L. (1998). Beyond Malthus: Sixteen dimensions of the population problem. Worldwatch Institute.
Lua i Stíl Chicago (17ú heag.)Brown, Lester Russell, Gary T. Gardner, Brian Halweil, agus Linda Starke. Beyond Malthus: Sixteen Dimensions of the Population Problem. Washington, DC: Worldwatch Institute, 1998.
Lua MLA (8ú heag.)Brown, Lester Russell, et al. Beyond Malthus: Sixteen Dimensions of the Population Problem. Worldwatch Institute, 1998.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.