||Buenos Aires: Losada, 1948, 340-6. The same study is also found in the author's La realidad histórica de España (Mexico City: Porrúa, 1954), 351-6, as well as in the revised English version of the 1948 book, The Structure of Spanish History, trans. Edmund L. King (Princeton; Univ. Press, 1954), 361-8.
||Snow 1977, no. 214: "C. projects, inconclusively, the idea that the zéjel form, predominant throughout the CSM, betrays more than contact with Arabic poetry; it reveals a community of values that touch the innermost regions of artistic life. To illustrate this, he brings in cantigas 169, 4, 6, 54, and 56. C. is almost always interesting; however, these remarks illuminate his own more general theories and manage to shed little light on the CSM as a work all its own."