According to a blog reporting a gossip mag quoting a source, they spend their whole time bickering over the menu.

It doesn't seem wise to try to win people by quoting a source they don't believe.

It would help if they quoted their sources.

The column made national headlines and ultimately led to the columnist's dismissal, but officially only for her quoting a source in a manner considered out-of-context.

The authenticity of materials and techniques used should be clearly accounted for through written and accessible records, quoting the sources of information on which the reconstructions are based.