TY  - BOOK
AU  - Heftmann, Erich
TI  - Chromatography: adsorption, partition, ion exchange, electrochromatography, column, slab, paper, gas 
AV  - QD 79.C4 H4
PY  - 1961///
CY  - New York
PB  - Reinhold
KW  - Análisis cromatográfico
ER  -