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Minerals yearbook / 3 / Area Reports / International / Africa and the Middle East
(2002)
Minerals yearbook / 3 / Area Reports / International / Asia and the Pacific
(1999)
Minerals yearbook / 3 / Area reports / International / Europe and Central Eurasia
(2001)
The Relationship between Interest Rates and Metal Price Movements.
Heal, Geoffrey, (1980)
Empirical investigation of the long-term movement of resource prices : A preliminary report
Heal, Geoffrey, (1981)
The relationship between interest rates and metal price movements