Forgotten Books · The New York Public Library
| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| Key to American Citizenship: The Result of Three, Years Teaching in the Citizenship School of the City of Oakland | 978-1-331-05442-9 (1-331-05442-7) | 2018 |
| Key to American citizenship: the result of three years' teaching in the Citizenship school of the city of Oakland | 978-1-131-14250-0 (1-131-14250-0) | 2011 |