0.31 G. A. Clark, Some Thoughts on the Black Skull: An Archeologist's Assessment of WT-17000 (A boisei) and Systematics in Human Paleontology, American Anthropologist, 1988.

{ human genetic populations modern }	0.31
{ social analysis terms cultural }	0.13
{ fact point evidence anthropologist }	0.13
{ number data group table }	0.12