00441nam a2200157Ia 4500008004100000082001800041100002200059245004800081260005000129300000800179650002300187650001800210653001900228653001500247700002100262170901s1972    xx            000 0 und d  a581.234bK11P  aKado, Clarence I. 0aPrinciples and Techniques in Plant Virology  aNew YorkbVan Nostrand Reinhold Companyc1972  a688  aBotanical sciences  aPure Sciences  aPlant virology  aTechniques  aAgrawal, Hari O.