Gordon Pask, Gerard de Zeeuw

Pask, G. & Zeeuw G. d. (1993). Interactions of Actors (IA), Theory and Some Applications. Volume 1 „Outline and Overview“. Unpublished.

Pask, G. & Zeeuw G. d. (1993). Interactions of Actors (IA), Theory and Some Applications. Volume 1 „Outline and Overview“. Unpublished.