€ 9,00
4to. 77 p.; ills. Spiral binding. (In English, German, French & Dutch; includes a calender of DSM)
(Heerlen, DSM, 1977).
kaleidoskoop
Mainz, v. Zabern, 1990.
Berlin, Walter de Gruyter, 1955.
N.pl., 1962.
München, Beck, (1981).