50th anniversary edition of A Past Revisited to be launched at the Sta. Mesa main campus of PUP on Sept. 5, from 9:00AM to 12:00 PM. Ipagbunyi ang #SintangPaaralan at makilahok! The special hardbound edition comes with a new introduction weaving the climate crisis with Philippine history and the global carbon past, as well the epic love story of Renato Constantino and Letizia Roxas Constantino.