(Trotsky 1936, pp. 125–126) Trotsky, Leon (1936). "The Task in Spain". New International. 5 (4). New York: Marxists Internet Archive. Archived from the original on 25 August 2011. Retrieved 4 September 2011.
(Trotsky 1936, pp. 125–126) Trotsky, Leon (1936). "The Task in Spain". New International. 5 (4). New York: Marxists Internet Archive. Archived from the original on 25 August 2011. Retrieved 4 September 2011.
According to (Thomas 1961, p. 31), it was estimated that around two-thirds of Spaniards were not practising Catholics. Thomas, Hugh (1961). The Spanish Civil War (1st ed.). London: Eyre and Spottiswoode. OCLC395987.