| title | media type | ISBN-13 (ISBN-10) | year of publica- tion | other author(s) |
|---|---|---|---|---|
| Parchment Barriers: Political Polarization and the Limits of Constitutional Order | Hardcover | 978-0-7006-2713-4 (0-7006-2713-8) | 2018 | Eric Helland · Kenneth P. Miller |
| Parchment Barriers: Political Polarization and the Limits of Constitutional Order | Paperback | 978-0-7006-2714-1 (0-7006-2714-6) | 2018 | Eric Helland · Kenneth P. Miller |
| Parchment Barriers: Political Polarization and the Limits of Constitutional Order | Digital | 978-0-7006-2715-8 (0-7006-2715-4) | 2018 | Eric Helland · Kenneth Miller |