Murphy, P. John <br/><br/>
The Rhythm way to Family happiness 

 - London:  Staples Press,  1959. 
 - 200p.;  ill.  24cm 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Personal health and safety
<br/><br/><label>Dewey Class. No.: </label>613.9434  / MUR