Burger, Henry G. "Procedure Gradation: A Means to Concept-Wording and Problem-Solving." Reprinted from General Systems 7 : 293-306, 1962

Burger, Henry G. "Procedure Gradation: A Means to Concept-Wording and Problem-Solving." Reprinted from General Systems 7 : 293-306, 1962, Box: 157. Julian Samora Papers, 24426265. Benson Latin American Collection, The University of Texas at Austin. https://archives.lib.utexas.edu/repositories/4/archival_objects/388702 Accessed September 26, 2026.