Individual WTSA-12 Resolutions and Opinion 1 are available free of charge here
WTSA-12 Proceedings can be purchased here
. They contain Resolutions (Rules of Procedure of ITU-T; study group responsibility and mandates; thematic Resolutions etc.), ITU-T A-series Recommendations (Organization of the work of ITU-T), the list of Questions for the study period 2013-2016 and reports as approved by WTSA-2012.