Publisher
- Routledge12
- Springer7
- CRC Press5
- Elsevier5
- Academic Press4
- The Scottish Government3
- IntechOpen2
- Wiley-ISTE2
- Apple Academic Press1
- BBC Digital1
- Belknap Press of Harvard University Press1
- Bristol University Press1
- CRC Press, Taylor & Francis Group1
- Ebury Digital1
- Echo Publishing1
- Forestry Commission1
- Lewis Publishers1
- Oekom1
- Pergamon1
- Profile Books1