how to retrieve url from a html format in R? -


in website "http://www.amazon.com/logitech-910-002974-wireless-mouse-scrolling/dp/b007t1ctde/ref=sr_1_4?ie=utf8&qid=1396676617&sr=8-4&keywords=logitech+mouse"

i want retrieve link 

"/product-reviews/b002hwrjbc/ref=sp_detail_page_cr_lnk"

in 

<a class="a-size-base" href="/product-reviews/b002hwrjbc/ref=sp_detail_page_cr_lnk">520</a>

can me xpath? thank you!

are trying scrape amazon reviews? wrote package this in response another stackoverflow question.


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