Johnson, G. B. (1994). Human biology: Exploring concepts. WCB.
Chicago-čujuhus (17. p.)Johnson, George B. Human Biology: Exploring Concepts. Iowa: WCB, 1994.
MLA-čujuhus (9. p.)Johnson, George B. Human Biology: Exploring Concepts. WCB, 1994.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.