Engineers Edge. (2016). General ISO Geometrical Tolerances Per. ISO 2786 Retrieved from http://www.engineersedge.com/mechanical,045tolerances/general_iso_tolerance_.htm
Geometrical Dimensioning and Tolerancing for Design, Manufacturing and Inspection : A Handbook for Geometrical Product Specification using ISO and ASME standards (2) by 
The Geometrical Tolerancing Desk Reference by Other possible books that you may find of use can be found on the catalogue under these keywords linked below.