Educational psychology : an objective study / by Peter Sandiford.
- Sandiford, Peter, 1882-1941.
- Date:
- 1928
Licence: In copyright
Credit: Educational psychology : an objective study / by Peter Sandiford. Source: Wellcome Collection.
143/440 (page 115)
Licence: In copyright
Credit: Educational psychology : an objective study / by Peter Sandiford. Source: Wellcome Collection.