| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| Direct Elections and Law-Making by Popular Vote: The Initiative, the Referendum, the Recall, Commission Government for Cities, Preferential Voting | 978-1-112-20785-3 (1-112-20785-6) | 2009 |
| Historic Pilgrimages in New England: Among Landmarks of Pilgrim and Puritan Days and of the Provincial and Revolutionary Periods | 978-1-112-60515-4 (1-112-60515-0) | 2010 |