00266nam a2200109Ia 450000500170000000800410001708200140005810000210007224500190009326000360011230000080014820260224040954.0260224s9999||||xx |||||||||||||| ||und||  a576.6 MAT  aMatthews, R.E.F. 0aPlant virology  aNew York, Academic Press c1970  a778