1. Steps to an ecology of mind;Bateson,1972
2. Principles of human knowledge;Berkeley,1965
3. World mirroring versus world making: There's gotta be a better way;Bickhard,1995
4. Constructivisms and relativisms: A shopper's guide;Bickhard;Science Education,1997
5. The interactivist model;Bickhard;Synthese,2009