Clark, J. J.
1906-09-14
n/a
https://doi.org/10.1126/science.24.611.327
oai:zenodo.org:1447968
Zenodo
info:eu-repo/semantics/openAccess
Creative Commons Zero v1.0 Universal
https://creativecommons.org/publicdomain/zero/1.0/legalcode
The Correspondence School--Its Relation to Technical Education and Some of Its Results
info:eu-repo/semantics/article