Prochnow , H. (1987). The public speakers treasure chest. I.B.D.
Chicago-čujuhus (17. p.)Prochnow , Herbert. The Public Speakers Treasure Chest. Bombay: I.B.D, 1987.
MLA-čujuhus (9. p.)Prochnow , Herbert. The Public Speakers Treasure Chest. I.B.D, 1987.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.