Αναφορές εγγραφής

Akkerman Ben 1920-, Tuyl Gijs van, Boos Kees, & Sizoo Hans. (1975). Elementary forms of contemporary painting and drawing in the Netherlands. Amsterdam: Visual Arts Office for Abroad of the Netherlands Ministry for Cultural Affairs, Recreation and Social Welfare.

Akkerman Ben 1920-, Tuyl Gijs van, Boos Kees, and Sizoo Hans. Elementary Forms of Contemporary Painting and Drawing in the Netherlands. Amsterdam: Visual Arts Office for Abroad of the Netherlands Ministry for Cultural Affairs, Recreation and Social Welfare, 1975.