| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| The Experimental Method of Testing the Efficiency of Warning and Cryptic Coloration in Protecting Animals From Their Enemies | 978-1-112-34196-0 (1-112-34196-X) | 2009 |
| Woodpeckers in Relation to Trees and Wood Products | 978-1-4297-9757-3 (1-4297-9757-6) | 2009 |