Architecture of florence

I’m preparing a research on the vernacular architecture of Florance/ Italy
Ii want the influence of the topography and the climate on the architecture of this city and the building styles, and the reason why they are building this way and the social,mental and material aspects of the architecture of the city and how did these three aspects are combined together to form this way of architecture.
And i hope you can find these information as soon as possible or tell me where can i find these information.

Thanks..