Exclude post formats in custom loop

$args=array(
    'paged'=>$paged, //Pulls the paged function into the query
    'posts_per_page'=> 4, //Limits the amount of posts on each page
    'post_type'=>'post_type', //Set your allowed post types here
    'orderby' => 'title',
    'order' => 'ASC'
);

query_posts($args);

For more reference refer this.

You can pass the allowed post_type array to post_type argument in arguments array.