Ruane, E. T., & Gray, R. J. (1987). Community responses to population growth and environmental stress: A national inventory of local managemant strategies. Population Environmental.
Παραπομπή σε μορφή Chicago (17η εκδ.)Ruane, Eugene T., και Robert J. Gray. Community Responses to Population Growth and Environmental Stress: A National Inventory of Local Managemant Strategies. Washington: Population Environmental, 1987.
Παραπομπή σε μορφή MLA (9th εκδ.)Ruane, Eugene T., και Robert J. Gray. Community Responses to Population Growth and Environmental Stress: A National Inventory of Local Managemant Strategies. Population Environmental, 1987.
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