erc: who: North Texas State University. School of Library and Information Sciences. what: The Call Number, Volume 38, Number 3, Summer 1977 when: 1977 where: https://digital.library.unt.edu/ark:/67531/metadc13566/ erc-support: who: University of North Texas Libraries what: Permanent: Stable Content: when: 20081203 where: https://digital.library.unt.edu/ark:/67531/