Zelenin, V.   author <br/><br/>
Strengthen your heart 
By V. Zelenin 
 - 2nd ed. 
 - Moscow  Mir Publishers  1979 
 - 109 p. :  illustrations. ;  20 cm. 
<br/><br/> Translated from the Russian by David A. Misne and Raissa S. Chervyakova 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Heart