Pulido, Paz et.al. <br/><br/>
Development and progress :  socio-economic problems concepts and inquiry / 
Paz Pulido, Severina Espineli, Anatalia Ramos, Herminia Valdez 
<br/><br/> College of Education  Bachelor of Elementary Education 
<br/><br/><label>ISBN: </label>
<br/><br/><label>Dewey Class. No.: </label>303.4409599 D49