Including Sub Pages in navbarleft

I am trying to list a subpage under a parent page. I have no idea but my latest experiment code looks like:

<div id=”navbarleft”>
<ul id=”nav”>

• “><?php _e(“Home”, ‘studiopress’); ?>

<?php wp_list_pages(‘title_li=&depth=4&sort_column=menu_order&include=2’); ?>
<?php wp_list_pages(‘title_li=&depth=4&sort_column=menu_order&include=6’); ?>
<?php $children = wp_list_pages(“title_li=&child_of=6&depth=4&include=37”); ?>

</div>

I am trying to list sub page 37 under the parent page 6 hence the $children bit.

Can someone assist me to get this to work