Statements (11)
| Predicate | Object |
|---|---|
| gptkbp:instanceOf |
gptkb:person
|
| gptkbp:field |
education
health education |
| https://www.w3.org/2000/01/rdf-schema#label |
John W. Ritchie
|
| gptkbp:nationality |
gptkb:American
|
| gptkbp:notableWork |
gptkb:Primer_of_Sanitation
gptkb:Ritchie_Readers |
| gptkbp:occupation |
gptkb:educator
author |
| gptkbp:bfsParent |
gptkb:Ritchie_Highway
|
| gptkbp:bfsLayer |
7
|