def get_link_html(url, station_name, headline):
    """
    Returns HTML for a link for member station content.

    Args:
        url (str): URL of station coverage of a book.
        station_name (str): Name of station.
        headline (str): Headline of the article.

    Returns:
        str: String containing HTML linking to the content.

    """
    return '<li class="external-link">%s: <strong><a href="%s" target="_blank">%s</a></strong></li>' % (
            station_name.strip(),
            url,
            headline.strip()
        )