Παραπομπή APA

(1968). Guide to government department and other libraries and information bureaux (18th.). London: Ministry of Defence.

Παραπομπή Chicago Style

Guide to Government Department and Other Libraries and Information Bureaux. 18th. London: Ministry of Defence, 1968.

Παραπομπή MLA

Guide to Government Department and Other Libraries and Information Bureaux. 18th. London: Ministry of Defence, 1968.

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