Filtering by: Creator Johnson, Milton I. Remove constraint Creator: Johnson, Milton I. Creator Stead, Eugene A. Remove constraint Creator: Stead, Eugene A. Collection PA Evaluation and Standardization Era (1973-1980) Remove constraint Collection: PA Evaluation and Standardization Era (1973-1980) Subject Stead, Eugene A. Remove constraint Subject: Stead, Eugene A. Year 1977 Remove constraint Year: 1977