| year of publication | ISBN | author(s) | title |
|---|---|---|---|
| 2009 | 978-0-9792781-6-7 | Don Day · Inc. Tec-Ease | Y14. 5-2009 GD&T Hierarchy Textbook |
| '' | 978-0-9792781-7-4 | '' | Y14. 5-2009 GD&T Hierarchy Pocket Guide |
| '' | 978-0-9792781-8-1 | Don Day | Workbook to accompany The GD&T Hierarchy Y14.5-2009 Textbook (The Hierarchy of Geometric Dimensionin |