erc: who: Landon, Charles N. what: [Drawing Lessons with Demonstrations] when: 1914 where: https://texashistory.unt.edu/ark:/67531/metapth866330/ erc-support: who: University of North Texas Libraries what: Permanent: Stable Content: when: 20081203 where: https://texashistory.unt.edu/ark:/67531/