Author: Back, J.T., 1942.:
Title: Prehistoric coal mining in the Jeddito Valley, Arizona. (Reports of the Awatovi Expedition, Peabody Museum. Harvard University, 2.) [Pap. Peabody Mus. Amer. Archeol. Ethn., 35(2).]
Description: Cambridge, Mass. 4to, 27cm. Pp. xii,24,[2], 7 photos on 4 pls., 10 maps and figs. in text, refs., bibl. Orig. printed wrs.

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