00279nam a2200121 a 450000500170000002000150001708200190003210000060005111000220005724500350007926000280011430000150014220251203091055.0  a0946707146  a660.6,bD, rus  d_  aRussell, Gordon E  aBiotechnology of higher plants  aDorsetbInterceptc1988  a240p, 22cm