Hale, M. Cobalt : a market appraisal / M. Hale. - London : Institute of Mining & Metallurgy, 1983. - 59 p. : maps. - Occasional papers of the Institute of Mining and Metallurgy ; 3 . ISBN: 0900488689 Subjects--Topical Terms: Cobalt--Economic aspects.Cobalt--Marketing.Cobalt--Valuation.