TY  - BOOK
AU  - Chang, Raymond
TI  - General chemistry : the essential concepts
SN  - 72828382
AV  -  QD 33.2 .C48 2006 
CY  - Boston, Mass. : McGraw-Hill Higher Education, c2006.
KW  -  Chemistry --Textbooks
N1  -  Includes index
ER  -