Subject
- People--Societies and clubs1
- Periodicals1
- Permits1
- Photocopies1
- Plant shutdowns1
- Poetry--20th century.1
- Poetry--Beat.1
- Poetry.1
- Political Campaigns1
- Political campaigns--New York (State)--New York.1
- Political campaigns--New York (State).1
- Political ethics--United States.1
- Political planning--New York (State)1
- Political posters1
- Politicians--New York (State)1
- Politicians--Washington (D.C.)1
- Pollution--Law and Legislation--United States1
- Pollution--United States1
- Postal service censorship1
- Postcards1