The Excavation and Repair of Betatakin
Judd NM and Smithsonian Institution, U.S. National Museum. 1930. The Excavation and Repair of Betatakin. No.2828-From the Proceedings of the United States National Museum. Vol.77, Art. 5, pp.1-77, pls 1-46. Washington, D.C.
The Indian appropriation act approved May 18, 1916, included the following:For preservation and repair of prehistoric pueblo ruins and cliff-dwellings, underthe supervision of the Smithsonian Institution, Navajo National Monument,Arizona, $3,000.