Frederick H. Howard. (1993). Global Communication &International Relations. Wads Worth.
Chicago-čujuhus (17. p.)Frederick H. Howard. Global Communication &International Relations. California: Wads Worth, 1993.
MLA-čujuhus (9. p.)Frederick H. Howard. Global Communication &International Relations. Wads Worth, 1993.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.