I'm interested to know whether it's possible to view the internal referring page (which is the page that Googlebot crawled).
For instance, if Googlebot crawled by website homepage and THEN crawled page A, then in addition to have two requests for TWO pages, I would ALSO want to see that the homepage providing a referral to page A.
Simple script to write, which looks back in time + builds a reverse tree of accesses.
If you have to repeat this regularly, best to rewrite your logformat to include a unique server cookie for each access.
This will speed up your script for decoding the chain of page accesses you require.