Sumif over multiple pages with two criteria

Try this Bill,

=IF(AND(A1="BOOK",B1="YELLOW"),C1,"")
Hope this helps. Jennifer

-----Original Message-----
I need help with a formula to give a total over multiple
pages when two criteria are met.

Col A Col B Col C
House Yellow 100
Book Yellow 100
Book Green 100

and then more pages of info, where it would give a total
of Col C only when Col A is "Book" and Col B is "Yellow"

Thanks,
BillP
.