Publisher
- Springer18
- Natural England10
- Elsevier5
- Academic Press4
- DK Children4
- Routledge4
- Pearson3
- Rough Guides2
- Butterworth-Heinemann1
- CRC Press1
- CRC Press, Taylor & Francis Group1
- DK1
- DK Pub1
- For Dummies1
- Palgrave Macmillan1
- Pearson Education Limited1
- Philip Allan Updates1
- Profile Books1
- Springer International Publishing Imprint: Springer1
- Teach Yourself1