9John. R. Hale (Preface, J. H. Parry for John. R. Hale Age of Exploration [M]. (Nederland) B. V. : Time-Life International, 1979. 被引量:1
10Pierre Chaunu (English by Katharine Bertram). European Expansion in the later Middle Ages [M]. Amsterdam: North-Holland Publishing Company, 1979. 被引量:1