De Groot, J. J. <br/><br/>
The high-pressure sodium lamp / 
J.J. de Groot and J.A.J.M van Vliet. 
 - London :  Macmillan Education,  c1986. 
 - 328 p. : ill. 
<br/><br/><label>ISBN: </label>0333432452 (Macmillan ed.) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Electric lighting, Sodium vapor.<br/>Electric discharge lighting.