@article{1403149,
      recid = {1403149},
      author = {Holt, Edward L., and Witcombe, Teresa,},
      title = {The sword and the cross : Castile-León in the era of  Fernando III /},
      pages = {1 online resource (xii, 265 pages).},
      url = {http://library.usi.edu/record/1403149},
}