Books like The Governmental Process
David Bicknell Truman
The Governmental Process is 544 pages, about 9 hours 58 minutes at 250 words a minute.
8 books to read next
How long each takes
Modern Political Analysis 2.9 h 
A Theory of Justice 11.1 h 
The Armies of the Night 5.7 h 
Propaganda 2.9 h 
Are Prisons Obsolete? 3.0 h 
Man, the State, and War 4.8 h 
One Nation Under God 6.5 h 
Political Man 7.9 h Bar height shows length. Estimated at 250 words a minute.