Can I register a CSS file - like javascript?

[Graham]

I like the idea that I can register a javascript file using RegisterClientScriptBlock
This means that any page using my control will also pull in the required javascript

I would also like the page that is using my control to pull in a css file. Is there any way to do this
i.e. instead of a script statement, I want to render a link statement like this
<LINK href="/WebSite/css/myControlStyles.css" type="text/css" rel="stylesheet"

Thank
graha