C Macfie Campbell, 'The sub-normal child - a study of the children in a Baltimore school district' (National Committee for Mental Hygiene)

Date:
1917
Reference:
PP/ADD/K/3/1

Licence: In copyright

Credit: C Macfie Campbell, 'The sub-normal child - a study of the children in a Baltimore school district' (National Committee for Mental Hygiene). Source: Wellcome Collection.

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