erc:
who: (:unav) unavailable
what: [The Physics Class, Spring 1900, North Texas State Normal College]
when: 1900
where: https://digital.library.unt.edu/ark:/67531/metadc850978/
erc-support:
who: University of North Texas Libraries
what: Permanent: Stable Content:
when: 20081203
where: https://digital.library.unt.edu/ark:/67531/