Author: Allen, R.C. (dir.), 1912.:
Title: Mineral resources of Michigan with tables of production and value of mineral products for 1910 and prior years. [Michigan Geol. Biol. Surv., Publ. Geol. Ser., 6.]
Description: Lansing, Michigan, 1912. 8voi, 22.7cm. Pp. 465, 21 photogr. plates, 16 figs., very numerous tables in text, index. Paperbound, orig. printed wrappers with cloth spine. Very good. - Scarce.

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