Including Libraries

Hi,

I want to include libraries, and have tried in the Contribution.xml:

        <jsInclude>"http://d3js.org/topojson.v1.min.js"></jsInclude>

        <jsInclude>"http://d3js.org/colorbrewer.v1.min.js"></jsInclude>

        <jsInclude>"http://d3js.org/d3.geo.tile.v0.min.js"></jsInclude>

It doesn't like this. How do I include the libraries?

Thanks.