(1973). Population: Perspective. Freeman, Cooper.
Chicago-čujuhus (17. p.)Population: Perspective. San Francisco: Freeman, Cooper, 1973.
MLA-čujuhus (9. p.)Population: Perspective. Freeman, Cooper, 1973.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.