COX, K. (1974). An introduction to the practical study of crystals, minerals and rocks. McGraw-Hill.
Chicago-viite (17. p.)COX, K.G. An Introduction to the Practical Study of Crystals, Minerals and Rocks. London: McGraw-Hill, 1974.
MLA-viite (9. p.)COX, K.G. An Introduction to the Practical Study of Crystals, Minerals and Rocks. McGraw-Hill, 1974.
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