Kogan. (1973). Public relation. Alexander Hamilton Inst.
Chicago-čujuhus (17. p.)Kogan. Public Relation. New York: Alexander Hamilton Inst, 1973.
MLA-čujuhus (9. p.)Kogan. Public Relation. Alexander Hamilton Inst, 1973.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.