Emperor Tigerstar's video, Why Does Andorra Exist

Geography Now's video, Andorra

The Great war’s video Liechtenstein, San Marino, Monaco and Andorra in world war 1

History files article’s Boris Skossyreff

Mr History’s video a super quick history of Andorra

Real crusader’s history’s documentary Albigensian crusade

US Government’s document on Andorra

Vandegraph’s video Co-principlaity of Andorra explained

The world at War Timeline Andorra 1866-1957

Wikipedia