It is standard practice, when reproducing news stories to credit the source of such stories. There are many posts on Nairaland, which do not state the source of the news stories, which are posted in the forum. These stories are intellectually property, even if they are available for free use, the writers must be credited. A news story from a secondary source should ideally contain source, and reporter. Following is one format

2011: Obasanjo May Dump Jonathan
Source: The Punch
By Fidelis Soriwei, Olusola Fabiyi and Ademola Oni
Saturday, 28 Aug 2010

Let's give our journalists their due recognition. Thanks everyone