00493nam a2200181Ia 4500008004100000020001500041082001400056100001800070245005000088260005000138300000800188650002300196650001800219653001100237700002100248700002200269700002000291170901s1969    xx            000 0 und d  a0716708159  a581bJ25P  aJanick, Jules 0aPlant SciencebAn Introduction to World Crops  aSan FranciscobW.H. Freeman and Companyc1969  a629  aBotanical sciences  aPure Sciences  aBotany  aRuttan,Vernon W.  aSchery, Robert W.  aWoods, Frank W.