TY  - BOOK
AU  - Selvaratnam, M.
AU  - Tantrigoda, Ramani U.
TI  - Basic principles of chemistry: physical quantities, their  inter-relationships and SI units,atomic structure and periodic table
U1  - 541 
PY  - 1995///
CY  - Nugegoda
PB  - Open University of Sri Lanka
KW  - Physical and Theoritical Chemistry
ER  -