lombardim lionello A. (1965). information systems for planning and control. National Planning Institute.
Chicago-čujuhus (17. p.)lombardim lionello A. Information Systems for Planning and Control. cairo: National Planning Institute, 1965.
MLA-čujuhus (9. p.)lombardim lionello A. Information Systems for Planning and Control. National Planning Institute, 1965.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.