Restricting indexation of dynamic pages...possibleN

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I have a website with some urls like these, used to track partnership's
referals :

The problem is that Google indexed those urls and it could mess up
statistics by couting "fake" hits from Google. I think it is possible to
exclude inclusion via robots.txt but dont know what syntax use, as it is
not a directory.

How to proceed? can I use dynamic urls in robots.txt like :

Disallow: /?refererId=1
Disallow: /?refererId=2
Disallow: /?refererId=10

thanks for the help :)


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