1-4 of 4 Books

Lectures on quasiconformal mappings
By Lars Valerian Ahlfors

Quasiconformal mappings in the plane
By Olli Lehto
Infinitesimal geometry of quasiconformal and bi-Lipschitz mappings in the plane
Infinitesimal geometry of quasiconformal and bi-Lipschitz mappings in the plane
By Bogdan Bojarski

Characteristic properties of quasidisks
By Frederick W. Gehring