003100000a22001330004500060000800000082001600008100002000024100001600044245003100060260003900091260000900130300000800139650002900147  a100  a631.585 ELL  aEllis, Carleton  aSwaney, M W  aSoil less growth of plants  aNewyork, Reinhold Book Corporation  c1953  a277  aSoil less culture plants