Pearce, D. W., & Walter, I. (1977). Resource conservation: Social and economic dimensions of recycling. New York University Press.
Dyfyniad Arddull ChicagoPearce, David William, and Ingo Walter. Resource Conservation: Social and Economic Dimensions of Recycling. New York: New York University Press, 1977.
Dyfyniad MLAPearce, David William, and Ingo Walter. Resource Conservation: Social and Economic Dimensions of Recycling. New York University Press, 1977.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.