Publisher
- Routledge2,850
- Mills & Boon2,323
- Argus Media group1,632
- CRC Press1,476
- Argus Media1,125
- Hodder & Stoughton912
- Argus Media Group831
- Cambridge Scholars Publishing760
- Springer692
- Pearson671
- Bloomsbury Academic607
- Gateway589
- Headline531
- Orion508
- House of Commons Library502
- Elsevier476
- Amberley Publishing425
- Office for National Statistics425
- Natural England424
- Sphere413