| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| Cytoplasmic Genes and Organelles | 978-0-12-614650-9 (0-12-614650-0) | 1972 |
| The Elephant in the Room: Evangelicals, Libertarians, and the Battle to Control the Republican Party | 978-0-471-79332-8 (0-471-79332-9) | 2006 |
David Helgren Robert Sager · Prof. Robert J. Sager · R. S. · Ray Sager · Rebecca Sager · Riley Sager · Robert J. Sager · Robert Sager · Ruth Sager · Ryan Sager