Παραπομπή APA

(1967). Current serials received by the NLL: March 1967. London: Her Majesty's Stationery Office.

Παραπομπή Chicago Style

Current Serials Received By the NLL: March 1967. London: Her Majesty's Stationery Office, 1967.

Παραπομπή MLA

Current Serials Received By the NLL: March 1967. London: Her Majesty's Stationery Office, 1967.

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