00375nam a2200133Ia 4500008004100000082001800041100001200059245004100071260006100112300000800173650002300181650001800204653001900222170901s1970    xx            000 0 und d  a581.234bB70S  aBos, L. 0aSymptoms of Virus Diseases in Plants  aNew DelhibOxford and IBH Publishing Co. Pvt. Ltd.c1970  a206  aBotanical sciences  aPure Sciences  aPlant virology