1. Cost curves and supply curves;Viner;Zeitschrift fur Nationalokonomie,1931
2. Reading in Price Theory;The American Economic Association,1952
3. Supply analysis model (SAM): a minerals availability system methodology;Davidoff,1980
4. US copper supply – an economic/engineering analysis of cost–supply relationships;Foley;Resources Policy,1981
5. Copper 1982–2000;Kovisars,1982