Fahrner, W. F. (1965). Basic rules of alphabetic filing Programmed instruction. SouthWestern.
Chicago-čujuhus (17. p.)Fahrner, William F. Basic Rules of Alphabetic Filing Programmed Instruction. SouthWestern, 1965.
MLA-čujuhus (9. p.)Fahrner, William F. Basic Rules of Alphabetic Filing Programmed Instruction. SouthWestern, 1965.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.