TY  - BOOK
AU  - Lingren, Wesley E.
TI  - Essentials of chemistry
SN  - 0132843161
U1  - 540 21st ed.
PY  - 1986///
CY  - New Jersey
PB  - Prentice-Hall
KW  - Atoms
KW  - Chemistry
KW  - Periodic tables
ER  -