Perrins, R. (1972). Practical Book-keeping And Commercial Knowledge R.e.g. Perrins. HFJ.
Čikaški stil citiranja (17. izdanje)Perrins, R.E.G. Practical Book-keeping And Commercial Knowledge R.e.g. Perrins. HFJ, 1972.
MLA način citiranja (8. izdanje)Perrins, R.E.G. Practical Book-keeping And Commercial Knowledge R.e.g. Perrins. HFJ, 1972.
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