Ingram, David J. E. <br/><br/>
Spectroscopy at radio and microwave frequencies/ 
by D. J. E. Ingram. 
 - 2nd ed. 
 - London:  Butterworths,  1967 
 - xvi, 534 pages:  ill.;  22 1/2 cm. 
<br/><br/>Includes bibliographies. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Microwave spectroscopy<br/>Radiofrequency spectroscopy