Ochsner, Karl Geothermal heat pumps: a guide for planning and installing - London: Earthscan 2008 - xvi[ii], 146p.: ill. ISBN: 9781844074068 Subjects--Topical Terms: BUILDINGGROUND SOURCE HEAT PUMPS SYSTEMS--HANDBOOKS, MANUALS, ETCHEAT PUMPS--HANDBOOKS, MANUALS, ETC LC Class. No.: TH 7638 Och