000 00254nam a22000977a 4500
082 _a631.585
_bDOU.A
100 _aDouglas, James Sholto
245 _aAdvanced guide to hydropoics:Soilless Cultivation
260 _aLondon
_bPelham books
_c1976
942 _cBK
999 _c213698
_d213698