00339nam a2200121Ia 4500008004100000082002400041100002500065245005000090250001200140260003800152300000900190650001800199140113s9999    xx            000 0 und d  a632.38(047.1)  G3;1  a" Smith, Kenneth M."  aRecent advances in the study of plant viruses  a2nd Ed.  b"London : J & A Churchill, 1933."  a423p  aPlant viruses