Παραπομπή APA

(1961). Study of circulation control systems: Public libraries, college and university libraries, special libraries. Chicago: American Library Association.

Παραπομπή Chicago Style

Study of Circulation Control Systems: Public Libraries, College and University Libraries, Special Libraries. Chicago: American Library Association, 1961.

Παραπομπή MLA

Study of Circulation Control Systems: Public Libraries, College and University Libraries, Special Libraries. Chicago: American Library Association, 1961.

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