€ 5,00
18 p. Wrappers. 21 cm (Valedictory lecture)
Amsterdam, VU, 1981.
echt
Groningen, Djakarta, Wolters, 1957.
Den Haag, Stok/Forum, n.d.
Leuven, Davidsfonds, (1948).
Amsterdam, Oxford, NHUM, 1975.
