Note 55 — 7 THE ARTIFACTS OF EARLY MAN IN THE NEW WORLD
Reading edition
William Duncan Strong, “An Introduction to Nebraska Archaeology,” Smithsonian Miscellaneous Collections, vol. 93, no. 10 (1935). E. W. C. and W. H. Campbell, The Pinto Basin Site (Southwest Museum Papers, no. 9, 1935), 33-34.