Threes, Fours, and Fives Together: A Curriculum Resource Guide for Multi-Age Grouping of Preschool Migrant Children, S Hoffman, Institute for Development of Human Resources, College of Education, University of Florida, Gainesville, FL, 1972

Threes, Fours, and Fives Together: A Curriculum Resource Guide for Multi-Age Grouping of Preschool Migrant Children, S Hoffman, Institute for Development of Human Resources, College of Education, University of Florida, Gainesville, FL, 1972, Box: 39, Folder: 62. Geneseo Migrant Center records, 8743. Division of Rare and Manuscript Collections. https://archives.library.cornell.edu/repositories/2/archival_objects/1828283 Accessed December 30, 2025.