[Tugindia] How to include both numbered and unnumbered references through natbib package

[Rakeshkumarjena, Narendra]

Dear All,
 
How can i include both numbered an unnumbered references in one Book through natbib package. I mean to say that, Suppose in one chapter bibliography style is unnumbered and next chapter the reference style is numbered. same as text citation.
 
Is there any other way to do. Please help me.
 
Thanks
 
Rakesh kumar jena