Posavac, Emil J. <br/><br/>
Program evaluation:   methods and case studies/ 
Emil  J. Posavac and Raymond G. Carey 
 - 5a ed. 
 - Upper Saddle River, N.J. :  Prentice Hall,  NJo., c1977. 
 - 263p. 
 - c .
<br/><br/><label>ISBN: </label>0-13-255332-5 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Evaluación-Salud.
<br/><br/><label>Dewey Class. No.: </label>361.25  / P656p