Robert C. Pianta

La & Classroom assessment scoring system: Observation protocol manual.

Robert C. Pianta, Km Paro, Bridget K. Hamre, 2006 .

La & Classroom Assessment Scoring System (CLASS). Baltimore: Brookes.

Robert C. Pianta, Km Paro, Bridget K. Hamre, 2008 .

La & Classroom assessment scoring system (CLASS) manual: Pre-K. Baltimore: Brookes Publishing Co.

Robert C. Pianta, Bridget K. Hamre, K Paro, 2008 .