CAMPBELL A. (1999). COLLAORATIVE ENTERPRISE. PERSEUS PUBLICATIONS.
Chicago-čujuhus (17. p.)CAMPBELL A. COLLAORATIVE ENTERPRISE. MASSACHUETTS: PERSEUS PUBLICATIONS, 1999.
MLA-čujuhus (9. p.)CAMPBELL A. COLLAORATIVE ENTERPRISE. PERSEUS PUBLICATIONS, 1999.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.