00373nam a2200121Ia 4500008004100000082001300041100001600054245004200070260004400112300001400156600001500170650006600185140224s9999    xx            000 0 und d  a578.6 L0  aHayat, M.A.  aBasic electron microscopy techniques.  aNew YorkbVan-Nostrand Reinholdcc 1972  axii,119p.  aM.A. Hayat  aElectron microscope-technique,Biological specimens-techniques