Gilluly, J.; The Ajo Mining District, Arizona. USGS Prof. Paper 209, Washington, GPO,1946. Quarto, pp. vii, 112 pages, 27 plates, (including 10 in rear pocket) 12 figs., 8 tables. Includes a supplement to.. Price: $80.00 
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Gilluly, J.; The Ajo Mining District, Arizona. USGS Prof. Paper 209, Washington, GPO,1946.
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