RADTKE,SHRMA N K. (1984). COOPERATIVE RESEARCH AND DEVELOPMENT. AMACOM.
Chicago-čujuhus (17. p.)RADTKE,SHRMA N K. COOPERATIVE RESEARCH AND DEVELOPMENT. NEW YORK: AMACOM, 1984.
MLA-čujuhus (9. p.)RADTKE,SHRMA N K. COOPERATIVE RESEARCH AND DEVELOPMENT. AMACOM, 1984.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.