Sagrera, Martín. <br/><br/>
Sex, population and politics 
Martín Sagrera. 
 - Madrid  Editorial Fundamentos  1990. 
 - 96 p.  ill.  17 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Birth control<br/>Philosophical anthropology<br/>Sex--Religious aspects.