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Dyfyniad Arddull ChicagoFrumkin, Howard, Lawrence D. Frank, and Richard Jackson. Urban Sprawl and Public Health: Designing, Planning, and Building for Healthy Communities. Washington, DC: Island Press, 2004.
Dyfyniad MLAFrumkin, Howard, et al. Urban Sprawl and Public Health: Designing, Planning, and Building for Healthy Communities. Island Press, 2004.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.