Jahoda, G. (1960). Correlative indexing systems for the control of research records. [New York]: Jahoda.
Παραπομπή Chicago StyleJahoda, Gerald. Correlative Indexing Systems for the Control of Research Records. [New York]: Jahoda, 1960.
Παραπομπή MLAJahoda, Gerald. Correlative Indexing Systems for the Control of Research Records. [New York]: Jahoda, 1960.
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