TY  - BOOK
AU  - Margolis, Emil J
TI  - Qualitative anioncation analysis: an interpretative laboratory text of semimicro procedure in basic college chemistry 
AV  - QD 98 M37
PY  - 1962///
CY  - New York
PB  - John Wiley
KW  - Química analítica cualitativa
ER  -