This snippet can be added to single-listings.php (used with AgentPress Listings and the AgentPress theme to add some extra nav links above and below the single listing content. You'll need to add corresponding CSS to style the output.

extra-links.php

<?php
/** 
 * Add Extra Action Links to Single Listings
 * 
 * @author Carrie Dils
 * @link http://www.carriedils.com/
 */

function cd_listing_extras() {

  $listing_extras = '<div class="listing-extras"><ul>';

	// Print friendly link 
        $listing_extras .= '<li><a href="' . get_permalink() . '?class=print">Print Flier</a></li>';
  
	// Back to all listings link
	$listing_extras .= '<li><a href="' . get_site_url() . '/listings/">Return to listings</a></li>';

	$listing_extras .='</ul></div>';

	echo $listing_extras;
}

// Add the extras above the post content
add_action('genesis_before_post_content', 'cd_listing_extras');

// Add the extras below the post content
add_action('genesis_after_post_content', 'cd_listing_extras');