- (Copyright 1976),
trade paperback, 220
pages Berry,
George W.; Grim, Paul J.;
Ikelman, Joy A. (1980).
Thermal Spring List for the
United States. Boulder, Colorardo:...
- Cruz, California: Aqua
Thermal Access. Berry,
George W.; Grim, Paul J.;
Ikelman, Joy A. (1980).
Thermal Springs List for the
United States. Boulder, Colorado:...
- springs. Sweden:
Votum Förlag AB. ISBN 978-91-87283-33-8. Berry,
George W.;
Ikelman, Joy A.; Grim, Paul J. (1980).
Thermal Springs List for the
United States...
-
Renewable Energy.
Retrieved 1
November 2020. Berry,
George W.; Grim, Paul J.;
Ikelman, Joy A. (1980).
Thermal Springs List for the
United States. Boulder, Coloratdo:...
-
Geographic Names Information System:
Democrat Hot
Springs Higgins,
Therberge &
Ikelman (1980).
Bailey (1967), p. 6.
Powers (1979), p. 82.
Powers (1979), p. 82–83...
- Thermal. p. 30. ISBN 978-1-890880-09-5. Berry,
George W.; Grim, Paul J.;
Ikelman, Joy A. (1980).
Thermal Spring List for the
United States. Boulder, Colorardo:...
- mystichotsprings.com.
Retrieved 23 July 2020. Berry, George; Grim, Paul;
Ikelman, Joy.
Thermal Springs List for the
United States. Boulder, Colorado: National...
-
springs in the
United States Higgins,
Chris T.; Therberge,
Albert E. Jr.;
Ikelman, Joy A. (1980).
Geothermal Resources of
California (PDF) (Map). NOAA National...
- Chronicle.
Retrieved 21
August 2021. Berry,
George W.; Grim, Paul J.;
Ikelman, Joy A. (1980).
Thermal Spring List for the
United States. Boulder, Colorardo:...
- Statesman.
Retrieved November 29, 2019. Berry,
George W.; Grim, Paul J.;
Ikelman, Joy A. (1980).
Thermal Springs List for the
United States. Boulder, Colorado:...