Callaghan, John. The Long Drift of the Communist Party of Great Britain. Journal of Communist Studies. September 1985, 1 (3–4): 171–172. ISSN 2159-9165. doi:10.1080/13523278508414788.
Callaghan, John. The Long Drift of the Communist Party of Great Britain. Journal of Communist Studies. September 1985, 1 (3–4): 171–172. ISSN 2159-9165. doi:10.1080/13523278508414788.