| title | ISBN-13 | year of publication |
|---|---|---|
| Gruber's Complete ACT Guide 2019-2020 | 978-1-5107-5420-1 | 2019 |
| Gruber's Complete GRE Guide 2019-2020 | 978-1-5107-5422-5 | 2019 |
| Gruber's Complete SAT Guide 2019-2020 | 978-1-5107-5418-8 | 2019 |
| Gruber's Essential Guide to Test Taking: Grades 3-5 | 978-1-5107-5426-3 | 2019 |
| Gruber's Essential Guide to Test Taking: Grades 6-9 | 978-1-5107-5428-7 | 2019 |
| Gruber's Word Master for Standardized Tests: The Most Effective Way to Learn the Most Important Vocabulary Words for the SAT, ACT, GRE, and More! | 978-1-5107-5424-9 | 2019 |
g G · G. Gruber · G. P. · Gary Gruber · Gary P.