Spiegel, Rene. <br/><br/>
Sleep and sleeplessness in advanced age / 
By Ren e Spiegel. 
 - Lancaster :  MTP,  1981. 
 - 272 p. :   ll., form ;  24 cm 
 - Advances in sleep research ;  v.5. .
<br/><br/>Bibliography : p.249-268. - Includes index. 
<br/><br/><label>ISBN: </label>0852005466 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Sleep.<br/>Aged--Switzerland--Basel.<br/>Aged--Switzerland--Case studies.<br/>Insomnia--In old age.<br/>Sleep--In old age.