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	1.	Reconnaissance of the geology of the Rabbit Ears region, Routt, Grand, and Jackson counties, Colorado, by F. F. Grout, P. G. Worcester, Junius Henderson. by Grout, Frank F. (Frank Fitch), 1880- Worcester, Philip G. (Philip George), 1884- [joint author.] Henderson, Junius, 1865-1937 [joint author.] Material type: Text; Format: print ; Literary form: Not fiction Publication details: [Denver, Col., The Smith-Brooks printing co., 1913] Availability: No items available. Add to cart (remove)
	2.	Geology and ore deposits of the Gold brick district, Colorado, by R. D. Crawford and P. G. Worcester. by Crawford, R. D. (Ralph Dixon), 1873- Worcester, Philip G. (Philip George), 1884- [joint author.] Material type: Text; Format: print ; Literary form: Not fiction Publication details: Denver, Colo., Eames bros., state printers, 1916 Availability: No items available. Add to cart (remove)
	3.	Molybdenum deposits of Colorado, with general notes on the molybdenum industry, by P. G. Worcester. by Worcester, Philip G. (Philip George), 1884- Material type: Text; Format: print ; Literary form: Not fiction Publication details: Denver, Colo., Eames bros., state printers, 1919 Availability: No items available. Add to cart (remove)
	4.	The geology of the Ward region, Boulder County, Colorado, by P. G. Worcester. by Worcester, Philip G. (Philip George), 1884- Material type: Text; Format: print ; Literary form: Not fiction Publication details: Denver, Eames bros., state printers [1920] Availability: No items available. Add to cart (remove)

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