Παραπομπή APA

Metcalfe, J. (1965). Alphabetical subject indication of information. New Brunswick, N.J: Graduate School of Library Service.

Παραπομπή Chicago Style

Metcalfe, John. Alphabetical Subject Indication of Information. New Brunswick, N.J: Graduate School of Library Service, 1965.

Παραπομπή MLA

Metcalfe, John. Alphabetical Subject Indication of Information. New Brunswick, N.J: Graduate School of Library Service, 1965.

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