| title | media type | ISBN-13 | year of publica- tion | other author(s) | |
|---|---|---|---|---|---|
| Defending Free Speech: Library Edition: Selected Commentary by the Ayn Rand Institute | Audio CD | 978-1-5385-4364-1 | 2018 | Steve Simpson · Leonard Peikoff · Onkar Ghate | |
| Defending Free Speech: Selected Commentary by the Ayn Rand Institute | " | 978-1-5385-4365-8 | 2018 | Steve Simpson · Leonard Peikoff · Onkar Ghate · Elan Journo · and various authors | |
| Defending Free Speech: Selected Commentary by the Ayn Rand Institute | MP3 CD | 978-1-5385-4366-5 | 2018 | Onkar Ghate · Elan Journo · and various authors · Steve Simpson · Leonard Peikoff | |
| The Philosophical Background and Scientific Legacy of E. B. Titchener's Psychology | Paperback | 978-3-319-00243-9 | 2013 | ||
| The Philosophical Background and Scientific Legacy of E. B. Titchener's Psychology: Understanding Introspectionism | Taschenbuch | 978-3-319-00241-5 | 2013 | ||