Cornell University Library · University of Missouri
| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| Stars Upstream: Life Along an Ozark River | 978-0-8262-0074-7 (0-8262-0074-5) | 1983 |
| The Evolution of Consciousness: -1901 | 978-1-112-15531-4 (1-112-15531-7) | 2009 |