Williamson, J. A. (1929). The voyages of the Cabots and the english discovery of North America under Henry VII and Henry VIII. By James A. Williamson, D. Lit.. Illustrated with thirteen maps (1a. ed.). The Argonaut Press.

Williamson, James A. The Voyages of the Cabots and the English Discovery of North America Under Henry VII and Henry VIII. By James A. Williamson, D. Lit.. Illustrated with Thirteen Maps. 1a. ed. Londres: The Argonaut Press, 1929.

Williamson, James A. The Voyages of the Cabots and the English Discovery of North America Under Henry VII and Henry VIII. By James A. Williamson, D. Lit.. Illustrated with Thirteen Maps. 1a. ed. The Argonaut Press, 1929.