FISHER, G. H. (1971). Cost consideration in system analysis. American Elsevier.
Chicago-čujuhus (17. p.)FISHER, Gene H. Cost Consideration in System Analysis. New York,: American Elsevier, 1971.
MLA-čujuhus (9. p.)FISHER, Gene H. Cost Consideration in System Analysis. American Elsevier, 1971.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.