Leogardo, Felicitas T., et.al.,  c1975. <br/><br/>
The World History :  a Cultural Perspective  (Concepts and Inquiry) / 
Leogardo, Felicitas T., et.al. 
 - Philippines :  Philippine Book Company,  c1975. 
 - 450p. :  illus. ;  25.4 cm.