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Innovation in Canadian metal mining, 1900-50
Downing, Alexander, (1984)
A history of technological innovations of Gakinjiro wood and metal workshops
Kabwete, Charles Mulinda, (2019)
Utilization of non-ferrous scrap metal : Report of the Expert Group Meeting on Non-ferrous Scrap Metal : Vienna, 15 -28 November 1969
(1970)
Small-scale manufacture of stabilised soil blocks
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The world's leather & leather products industry : a study of production, trade patterns and future trends ; prepared for the United Nations Industrial Development Organization
Ballance, Robert H., (1993)
The animal feed industry for developing countries : background paper
Koenig, Horst, (1992)