Calloni, Juan Carlos, <br/><br/>
Porteros eléctricos :  porteros eléctricos con imagen (videosporteros) : porteros electrónicos / 
Juan Carlos Calloni. 
 - 1 online resource :  illustrations. 
<br/><br/>Includes bibliographical references and index. 
<br/><br/><label>ISBN: </label>9789871135867 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Buildings--Electric equipment.<br/>Electronic apparatus and appliances.
<br/><br/><label>Index Terms--Genre/Form: </label><br/>Electronic books.
<br/><br/><label>LC Class. No.: </label>TK4001 ebook