There are 2 books by Ruth S. Hubbard on BookOrb. A strong starting point is Lang Dev (2002). The bibliography below is in publication order, with series grouped in reading order.
Standalone books
Frequently asked questions
How many books has Ruth S. Hubbard written?
BookOrb lists 2 books by Ruth S. Hubbard.
Where should I start with Ruth S. Hubbard?
A good starting point is Lang Dev (2002).
What is the Ruth S. Hubbard books in order list?
In publication order: 1. Lang Dev (2002), 2. Language Developmnt and Esol Strat and Respond (2002).