000 00314 a2200133 4500
080 _a631.544.3
_bC 775 S
245 1 _aSoil warming by electricity
_cby R.H. Coombes
260 _aLondon
_c1955
650 _aSoil Warming
650 _aElectricity
100 1 _aCoombes, R.H.
_d
300 _a116 p.
901 _a50028
999 _c44845
_d44845