- Experience" (PDF). Geo-Heat
Centre Quarterly Bulletin. Vol. 20, no. 4.
Klmath Falls, Oregon:
Oregon Institute of Technology. pp. 13–18. ISSN 0276-1084...
- Pump Owner" (PDF). Geo-Heat
Centre Quarterly Bulletin. Vol. 18, no. 2.
Klmath Falls, Oregon:
Oregon Institute of Technology. pp. 1–11. ISSN 0276-1084...
- Pump Owner" (PDF). Geo-Heat
Centre Quarterly Bulletin. Vol. 18, no. 2.
Klmath Falls, Oregon:
Oregon Institute of Technology. pp. 1–11. ISSN 0276-1084...