Bibliografía (9 obras)
The Invisible Atlas Geographic Curiosities Myths Blunders And Lies
2009
In a Unicorn's Garden
2008
A Posy of Violets
1996
Lavender Sweet Lavender
1989
Our heritage of old roses
1987
This Chemical World Workbook
1980
This Chemical World
This Living World
1977
This Living World Workbook
1974
