Books by Gretta K. Siebentritt:
![[Info]](https://onlinebooks.library.upenn.edu/info.gif)
Siebentritt, Gretta K., trans.: The Latin American Challenge: Social Cohesion and Democracy (ca. 2008), by Bernardo Sorj and Danilo Martuccelli (multiple formats at archive.org)
Find more by Gretta K. Siebentritt at your library, or elsewhere.