M3: Leroy Raadel Posey, an African American Inventor of a Mathematics Teaching Machine
Crossref DOI link: https://doi.org/10.1007/s12111-019-09421-1
Published Online: 2019-02-28
Published Print: 2019-06
Update policy: https://doi.org/10.1007/springer_crossmark_policy
Young, Patricia A.
Thomas, Evelyn K.
Text and Data Mining valid from 2019-02-28
Article History
First Online: 28 February 2019