erc: who: Trusty, Ruby what: A Comparative Study of the Scholastic Achievement of Junior High School Boys Who Work after School and Those Who Do Not when: 1950 where: https://digital.library.unt.edu/ark:/67531/metadc96905/ erc-support: who: University of North Texas Libraries what: Permanent: Stable Content: when: 20081203 where: https://digital.library.unt.edu/ark:/67531/