R. F. · R.F. Hudson · R. H. · R. Hudson
| title | ISBN-13 (ISBN-10) | year of publica- tion | other author(s) |
|---|---|---|---|
| California Excursions: Side by Side, Grade 4 | 978-0-15-352200-0 (0-15-352200-3) | 2010 | Isabel L. Beck · Roger C. Farr · Dorothy S. Strickland · Alma Flor Ada |
| Twists and Turns | 978-0-15-343175-3 (0-15-343175-X) | 2008 | Isabel L. Beck · Roger C. Farr · Dorothy S. Strickland · Alma Flor Ada |