[8] Please Touch Museum，1990 Annual Report，Philadelphia：Please Touch Museum，1991，p.7.
[9] Children's Museum of Manhattan，1989/90 ‘Annual Report，New York：CMOM，1991，p.1.
[10] M.Hanna，Sightseeing in the UK，London：BTA/ETB Research Services，annual series.
[11] S.McCormick，op.cit.，pp.14-15.
[12] M.Hanna，op.cit.
[13] S.McCormick，op.cit.