TY  - BOOK
AU  - Walkenbach,John
TI  - Excel 2007 formulas / 
SN  - 9780470044025   
PY  - 2007///
CY  - Indiapolis
PB  - Wiley Publishing, 
KW  - Business
KW  - Computer programs
KW  - Microsoft excel
N1  - Includes index and CD-ROM
ER  -