Evan's dialogue with Jean Piaget and Barbel Inhelder - Piaget, Jean 1896-1980 (Pennsylvania State University, 2006)
Entrevista--Título del marbete: Dr. Jean Piaget with dr. Barbel Inhelder--Créditos: New French to English translation by Eleanor Duckworth ; narrated by Philip Clarke ; editor Richard I. Evans ; film editor Arnold Bergene ; produced by Kuht Film Production--Hecho en c1972, University Houston