Which one is best? Parameters or Meta

[CommercePundit]

I have issue regarding duplicate pages on website as follow.

http://www.vistastores.com/review.html?pr_page_id=90344

http://www.vistastores.com/review.html?pr_page_id=90345

I checked my Google webmaster tools and found that Google have already set Parameter with pr_page_id. So, what is this? Will Google index all that pages? Can I use following Meta tag to block indexing? Which one is best?

[cfguti]

Hi,

with this parameter, google don't check all these pages, because google think that are duplicate pages (and it's correct).

I think is better to use the meta's. This way you have the control.

Bye.