Magison, Ernest C. <br/><br/>
Electrical instruments in hazardous locations / 
Ernest C. Magison 
 - 4th ed. 
 - Research Triangle Park, NC :  International Society of Automation (ISA),  1998 
 - xiv, 583 p. :  ill. ;  26 cm. 
<br/><br/>Includes bibliographical references and index 
<br/><br/><label>ISBN: </label>9780979234316 (pbk.) 097923431X (pbk.) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Electrical engineering--Safety measures