Παραπομπή APA

John, M. (1965). Alphabetical subject indication of information. Graduate School Library Services.

Παραπομπή Chicago Style

John, M. Alphabetical Subject Indication of Information. New Jursey: Graduate School Library Services, 1965.

Παραπομπή MLA

John, M. Alphabetical Subject Indication of Information. Graduate School Library Services, 1965.