F Perkins · L.P. · L Perkins · Lucy F. Perkins
| title | media type | ISBN-13 | year of publication |
|---|---|---|---|
| American Twins of 1812: Twins Series | Paperback | 978-1-934610-17-6 | 2009 |
| The American Twins of the Revolution | " | 978-1-934610-13-8 | 2008 |
| The Belgian twins | " | 978-1-131-14047-6 | 2011 |
| The Cave Twins | " | 978-1-4099-7577-9 | 2009 |
| The Colonial Twins of Virginia | " | 978-1-934610-29-9 | 2008 |
| The Dutch Twins, Illustrated Edition | " | 978-1-59915-057-4 | 2006 |
| The Eskimo Twins | " | 978-1-4065-8661-9 | 2007 |
| The Eskimo Twins | " | 978-1-59915-059-8 | 2006 |
| The French Twins | " | 978-1-4069-2553-1 | 2006 |
| The Irish Twins, Illustrated Edition | " | 978-1-59915-122-9 | 2008 |
| The Italian Twins | " | 978-1-4099-7579-3 | 2009 |
| The Japanese Twins | " | 978-1-4065-8663-3 | 2007 |
| The Japanese Twins | Hardcover | 978-1-4218-0369-2 | 2006 |
| The Japanese Twins | Paperback | 978-1-59915-058-1 | 2006 |
| The Japanese Twins | " | 978-1-4218-0469-9 | 2005 |
| The Pioneer Twins | Hardcover | 978-0-89190-472-4 | 1989 |
| The Scotch Twins | Paperback | 978-81-320-0740-1 | 2008 |
| The Spartan Twins | " | 978-1-4400-6690-0 | 2012 |
| The Spartan Twins | " | 978-1-4065-8666-4 | 2007 |
| The Swiss Twins | Hardcover | 978-0-89190-670-4 | 1989 |
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