An American national standard :  IEEE recommended practice for cement plant electric drives and related electrical equipment / 
sponsor Cement Industry Committee of the IEEE Industry Applications Society 
 - 21 páginas 
<br/><br/> "approved april 14, 1989. ieee industry applications society"  Ansi/ieee std. 499-1989 (revision of ansi/ieee std. 499-1893)  "approved septiember 13, 1989. american national standards institute" 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Cemento--Plantas--Equipo y aparatos--Normas
<br/><br/><label>LC Class. No.: </label>TP882  / I44