Question about a link relationship attribute

Some lazy questions- I'm sure people have thought and discussed before.

I was just acquainting myself with cito, and was wondering what people thought was the best link relationship  to use for the case of a web page which is a local representation of a book, as might be found on an OPAC item page, bookstore item page, or a discussion page on social network page. None of the cito attributes fit- same with bibo. 

Or is the web page just rdf:about the book? If I put an "like" button on the page, is the user liking the book or the discussion about the book?

Eric Hellman
President, Gluejar, Inc.
41 Watchung Plaza, #132
Montclair, NJ 07042
USA

eric@hellman.net 
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