TY  - BOOK
AU  - Willmore T J
TI  - An introduction to differential geometry
U1  - 516.36 
PY  - 1959///
PB  - Oxford University Press
KW  - GeometryDifferential And Integral GeometryATOMIC STRUCTURE, THE NATURE OF THE CHEMICAL BOND, IONIC COMPOUNDS, IONIC SIZE AND IONIC LATTICS , MULTIPLE BOND
ER  -