Barrons Educational Series · Ediciones Granica,S.A.
| title | ISBN-13 (ISBN-10) | year of publica- tion | other author(s) |
|---|---|---|---|
| ¡dos o mas...! - gemelos, mellizos, trillizos, o mas | 978-84-7577-677-4 (84-7577-677-9) | 2007 | Karen Kerkhoff Gromada |
| Keys to Parenting Multiples | 978-0-7641-1293-5 (0-7641-1293-7) | 2001 | " |