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Vaughan, J. R., 19 Maw 2008, Exploring Intelligence Archives: Enquiries into the Secret State. Hughes, R. G., Jackson, P. & Scott, L. (gol.). Abingdon: Taylor & Francis, t. 213-2153 t. (Studies in Intelligence).
Allbwn ymchwil: Pennod mewn Llyfr/Adroddiad/Trafodion Cynhadledd › Pennod