Hay, Alfred <br/><br/>
Alternating currents:  their theory, generation and transforamtion/ 
Alrfred Hay 
 - 5th rev. and ed. 
 - London:  Harper and Brothers,  1923 
 - xvi, 420 p.;  22 cm. 
<br/><br/> Includes index 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Electric currents, alternating<br/>Electric power transmission--Alternating current<br/>Electric Power systems
<br/><br/><label>Dewey Class. No.: </label>621.31913