I have 13 worksheets I want to sum quarterly. The formula I've been trying
is:

=SUMIF(A5:A36,"136982",'Apr 4:Jun 27'!G5:G36) but I get a #Value! error
message.

In column A I have contract numbers. In column G is the crew size. I want
to sum all the crew size based on specific contract numbers.

Any help is appreciated :)