Allman, Miriam H.2020-04-261991Allman, Miriam H., et al. 1991. "Section 1: The preservation challenge" in "Preserving Harvard's retrospective collections". Harvard Library Bulletin 2 (2), Summer 1991: 10-11.0017-8136http://nrs.harvard.edu/urn-3:HUL.InstRepos:42661678en-US"Section 1: The preservation challenge" in "Preserving Harvard's retrospective collections"Journal Article2020-04-26