00469nam a2200169Ia 4500008004100000020001500041082001900056100002200075245006600097250000600163260004500169300000800214650002300222650001800245653002000263653001600283170901s1976    xx            000 0 und d  a0521208041  a581.8761bR58C  aRoberts, Lorin W. 0aCyto-differentiation in PlantsbXylogenesis as a Model System  a1  aLondonbCambridge University Pressc1976  a160  aBotanical sciences  aPure Sciences  aDifferentiation  aPlant cells