Dr. Elfing examining equipment used to protect apples from Pollution damage, Summer 1979

Dr. Elfing examining equipment used to protect apples from Pollution damage, Summer 1979, Job #634, Box: 17. Cornell University Media Services Photo Section records, 21-37-2227. Division of Rare and Manuscript Collections. https://archives.library.cornell.edu/repositories/2/archival_objects/164511 Accessed December 28, 2025.