IPM, CRF-Z, Correspondence 1995-2002 ; NC-140 1987-1997 ; Stone Fruit Root Stock; NY Back-up Files 1990-2006 ; Pear Progress Reports, 1948-1977, 1990-2006, 1995-2002, 1987-1997, 1990-2006, 1948-1977

IPM, CRF-Z, Correspondence 1995-2002 ; NC-140 1987-1997 ; Stone Fruit Root Stock; NY Back-up Files 1990-2006 ; Pear Progress Reports, 1948-1977, 1990-2006, 1995-2002, 1987-1997, 1990-2006, 1948-1977, Box: 27. Robert L. Andersen papers, 22-2-3580. Division of Rare and Manuscript Collections. https://archives.library.cornell.edu/repositories/2/archival_objects/283858 Accessed December 24, 2025.