TY  - BOOK
AU  - Trifonov,D.N.
AU  - Trifonov,V.D.
TI  -  Chemical Elements: How They Were Discovered
SN  -  5030007784
U1  - 546.11 
PY  - 1989///
CY  - Moscow
PB  - Mir Publication
KW  - Chemistry and Allied Science
KW  - Inorganic Chemistry
KW  - রসায়ন
ER  -