APA-čujuhus (7. p.)
ebrary, Inc, Abowd, J. M., & Freeman, R. B. (1991). Immigration, trade, and the labor market. University of Chicago Press.
Chicago-čujuhus (17. p.)
ebrary, Inc, John M. Abowd, juo Richard B. Freeman. Immigration, Trade, and the Labor Market. Chicago: University of Chicago Press, 1991.
MLA-čujuhus (9. p.)
ebrary, Inc, et al. Immigration, Trade, and the Labor Market. University of Chicago Press, 1991.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.