Human biology : exploring concepts / Johnson, George B. Human biology. Human ecology. 612 BRO 1994 A055 Or. Includes index. Dubuque, Iowa : Wm. C. Brown Publishers, c1994. c1994. Text xxiv, 406, [32] p. : http://www.loc.gov/catdir/description/mh022/93073944.html http://www.loc.gov/catdir/toc/mh022/93073944.html