"Sources" . . . . . . . . . . . . . . "Martim Afonso de Mello : captain-major of the Portuguese fleet which sailed to China in 1522, being the Portuguese text of two unpublished letters of the National Archives of Portugal" . "Martim Afonso de Mello, captain-major of the Portuguese fleet which sailed to China in 1522. Being the Portuguese text of two unpublished letters of the National Archives of Portugal" . . "Martim Afonso de Mello: captain-major of the Portuguese fleet which sailed to China in 1522 : being the Portuguese text of two unpublished letters of the National archives of Portugal" . . . . . "Martim Afonso de Mello, captain-major of the Portuguese fleet which sailed to China in 1522 : being the Portuguese text of two unpublished letters of the National Archives of Portugal" . . "Portugal" . . . . "China" . .