The experimental study oh human sleep  methodological problems  proceedinga of international symposium-Bardolino, Italy, April 3-5, 1974 
editors Gabrielle C. Lairy, Piero Salzarulo 
 - Amsterdam  Elsevier Science  1975 
 - 473 p. : ill. ; 25 cm. 
<br/><br/><label>ISBN: </label>0444413685 
<br/><br/><label>LCCN: </label>75-033980 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Sleep--Congresses