books?id=I_9tAAAAMAAJ&q=The+Buwayhid+dynasty+of+Baghdad,+334/946-447/1055&dq=The+Buwayhid+dynasty+of+Baghdad,+334/946-447/1055&hl=da&sa=X&ei=L6nvUsiEGcfl4QT3noHQAQ&ved=0CC8Q6AEwAA
books?id=I_9tAAAAMAAJ&q=The+Buwayhid+dynasty+of+Baghdad,+334/946-447/1055&dq=The+Buwayhid+dynasty+of+Baghdad,+334/946-447/1055&hl=da&sa=X&ei=L6nvUsiEGcfl4QT3noHQAQ&ved=0CC8Q6AEwAA