TY  - BOOK
AU  - Langford,Cooper Harold
AU  - Beebe,Ralph A.
TI  - The development of chemical principles
T2  - Addison-Wesley series in chemistry
U1  - 540 
PY  - 1969///]
CY  - Reading, Mass.
PB  - Addison-Wesley Pub. Co.
KW  - Chemistry
ER  -