Different CSS for different pages in Mandingo

Using Mandingo 1.42 and I am trying to use a different .css for different pages. I have tried several of the solutions offered for non mandingo pages but they don’t appear to work.

Most of the sulutions revolve around something like

<?php if ( is_page(array(‘police-courses’,’program-1′,’program-2′,’program-3′)) ) { ?>
<link rel=”stylesheet”link to 1.css here” type=”text/css” media=”screen” />
<?php } else { ?>
<link rel=”stylesheet” href=”link to 2.css here” type=”text/css” media=”screen” />
<?php } ?>

In the header. but with mandingo this changes all pages to the same .css.