000 00297nam a2200097Ia 4500
100 _aMayer A & Ivanowski D
245 _aConcerning the Mosaic Disease of Tobaco Phytopathological Classics No 7
260 _bAm Phytopathological Soc, Lancaster
082 _aI23/N68.7/B08095
300 _app 62; 23*18
999 _c16729
_d16729