Barnett, H. J. (1963). Scarcity and growth: The economics of natural resource availability. Johns Hopkins University Press.
Dyfyniad Arddull ChicagoBarnett, Harold J. Scarcity and Growth: The Economics of Natural Resource Availability. Baltimore: Johns Hopkins University Press, 1963.
Dyfyniad MLABarnett, Harold J. Scarcity and Growth: The Economics of Natural Resource Availability. Johns Hopkins University Press, 1963.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.