Wolfgang, M. E. (1975). Adjusting to scarcity. American Academy of Political and Social Science.
Dyfyniad Arddull ChicagoWolfgang, Marvin E. Adjusting to Scarcity. Philadelphia: American Academy of Political and Social Science, 1975.
Dyfyniad MLAWolfgang, Marvin E. Adjusting to Scarcity. American Academy of Political and Social Science, 1975.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.