003330000a22001210004500060000800000082001400008100001800022245009200040260004400132260000900176300000800185650001800193  a100  a570 SCI.0  aBates, Master  aScientific American Resource Library : Reading in the Life Science V. I Off prints 1-51  aSan Francisco, W.H. Freeman and Company  c1969  a406  aLife Sciences