€ 5,00
(after 1975). 40 p.; ills. Wrs. 21 cm (St. on title)
Groningen, Wolters-Noordhoff, n.d.
democratie
Paris, Bruxelles, Sequoia-Elsevier, (1969).
Kampen, Kok, 1953.
Hasselt, Heideland, 1968.
Den Haag, Stok/Forum, n.d.