Fahrner, W. F. (1965). Basic rules of alphabetic filing Programmed instruction. SouthWestern.
Čikaški stil citiranja (17. izdanje)Fahrner, William F. Basic Rules of Alphabetic Filing Programmed Instruction. SouthWestern, 1965.
MLA način citiranja (9. izdanje)Fahrner, William F. Basic Rules of Alphabetic Filing Programmed Instruction. SouthWestern, 1965.
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