Groups, graphs, and trees an introduction to the geometry of infinite groups nork Meier, John

The theory of infinite soluble groups nork Lennox, John C., Robinson, Derek J. S.

Available for University of the Philippines Diliman via Oxford Scholarship Online. Click here to access:

The theory of infinite soluble groups nork Lennox, John C., Robinson, Derek John Scott

Available for University of the Philippines System via Oxford Scholarship Online. Click here to access.