TY  - BOOK
AU  - Chang,Raymond
AU  - Overby,Jason Scott
TI  - General chemistry: the essential concepts 
SN  - 9780071313681
U1  - 540 22
PY  - 2011///
CY  - New York, NY
PB  - McGraw-Hill
KW  - Chemistry
KW  - Textbooks
KW  - Hóa học
ER  -