1. Nubia: Corridor to Africa;Adams,1977
2. Dental conditions and nutrition among natives in Greenland;Baaregaard;Oral Surg. Oral Med. Oral Pathol.,1949
3. Dental caries and diet in an Alaskan Eskimo population;Bang;Scand. J. Dent. Res.,1972
4. The geography of excavated Predynastic sites and the rise of complex society;Bard;J. Am. Res. Center Egypt,1987
5. Bard, K.A., 1987b. An analysis of the Predynastic cemeteries of Nagada and Armant in terms of social differentiation. Ph.D. Dissertation, University of Toronto, Toronto.