| title | ISBN-13 | year of publica- tion | other author(s) |
|---|---|---|---|
| Light and the Flowering Process | 978-0-12-721960-8 | 1984 | Bryan Thomas |
| Photoperiodism in Plants | 978-0-12-688490-6 | 1996 | Brian Thomas |
| Photoperiodism in Plants | 978-0-07-084048-5 | 1975 | |
| Science and the Garden: The Scientific Basis of Horticultural Practice | 978-1-4051-6063-6 | 2008 | David S. Ingram · Peter J. Gregory |
| Science and the Garden: The Scientific Basis of Horticultural Practice | 978-0-632-05308-7 | 2002 | David S. Ingram · Peter J. Gregory |
Academic Press · McGraw-Hill · Wiley-Blackwell