@book {3601, title = {Baghdad during the Abbasid Caliphate}, year = {1900}, publisher = {Clarendon Press}, organization = {Clarendon Press}, address = {Oxford}, keywords = {Maps}, url = {https://archive.org/details/BaghdadDuringTheAbbasidCaliphateFromContemporaryArabicAndPersian}, author = {Guy Le Strange} }