00443nam a2200181Ia 4500008004100000082001000041082000800051100002000059245007900079250000900158260002200167260000900189300002000198365000600218365000600224365000600230650002500236181031s9999    xx            000 0 und d  a720.1  bHAR  aHarbison Robert  aBuilt,the Unbuilt and the Unbuildable:in pursuit of architectural meaning.  a2nd.  bThames and Hudson  c1993  a92p; 140 illus.  b0  d0  e0  aArchitectural Theory