1.
Art of Proof : Basic Training for Deeper Mathematics
by Beck, Matthias, Geoghegan, ...
ISBN: 9781441970220
List Price: $39.95
2.
Topological Methods in Group Theory (Graduate Texts in Mathematics)
by Geoghegan, Ross
ISBN: 9781441925640
List Price: $64.95
3.
4.
Connectivity Properties of Group Actions on Non-Positively Curved Spaces
by Bieri, Robert, Geoghegan, Ross
ISBN: 9780821831847
List Price: $54.00