Sessions & robots - need help

[zuses]

Hi:) I have some pages (directory) & don't want them to be indexed with sessions id. For me address looks like:
/bla-bla-bla/?c=7
indexed pages addresses look like:
/bla-bla-bla/?c=0&o=1&start=51 or /bla-bla-bla/?c=0&o=2&start=94
Can I disallow indexing them this way:
Disallow: /bla-bla-bla/?c=0&o/
Please, help!:)

[Dijkgraaf]

Well you would want to drop that trailing slash so that it reads
Disallow: /bla-bla-bla/?c=0&o

Otherwise
/bla-bla-bla/?c=0&o/
would not equal the start of
/bla-bla-bla/?c=0&o=1&start=51 or
/bla-bla-bla/?c=0&o=2&start=94

[zuses]

Thank u:)))