Columbus, C., Major, R. H., Taylor, E. G. R., & Jane, L. C. (2010). Select documents illustrating the four voyages of Columbus: Including those contained in R.H. Major's Select letters of Christopher Columbus. Ashgate.

Columbus, Christopher, Richard Henry Major, E. G. R. Taylor, and Lionel Cecil Jane. Select Documents Illustrating the Four Voyages of Columbus: Including Those Contained in R.H. Major's Select Letters of Christopher Columbus. Surrey: Ashgate, 2010.

Columbus, Christopher, et al. Select Documents Illustrating the Four Voyages of Columbus: Including Those Contained in R.H. Major's Select Letters of Christopher Columbus. Ashgate, 2010.