"armstead, h c. "
"geothermal energy:its past, present and future contributions: to the ergy needs of man/ h.c. armstead" - 1 ed. - uk : e & f.n. spon 1978. - "xxvii, 357p.; 24 cm."
includes bibliography
0-470-26337-7 hard cover
geothermal engineering--geothermal resources
553. 7 arm
"geothermal energy:its past, present and future contributions: to the ergy needs of man/ h.c. armstead" - 1 ed. - uk : e & f.n. spon 1978. - "xxvii, 357p.; 24 cm."
includes bibliography
0-470-26337-7 hard cover
geothermal engineering--geothermal resources
553. 7 arm