Wade, M G <br/><br/>
Biorhythms in the activity of children during free play.  [electronic resource] 

 -  Journal of the experimental analysis of behavior  Jul 1973 
 - 155-62 p.  digital 
<br/><br/> Publication Type: Journal Article 
<br/><br/><label>ISSN: </label>0022-5002 
<br/><br/><label>Standard No.: </label>10.1901/jeab.1973.20-155  doi 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Arousal<br/>Child, Preschool<br/>Female<br/>Group Structure<br/>Heart Rate<br/>Humans<br/>Male<br/>Periodicity<br/>Play and Playthings