Sullivan, T. J. (1988). Introduction to social problems. Macmillan.
Chicago-čujuhus (17. p.)Sullivan, Thomas J. Introduction to Social Problems. Macmillan, 1988.
MLA-čujuhus (9. p.)Sullivan, Thomas J. Introduction to Social Problems. Macmillan, 1988.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.