Description
Published:1939-
Physical Description:v. ; 26 cm
Publication Frequency:Anual.
Bibliography:Bibliogr.
ISSN:00765872
Finding Aid:Vol. 1-25 (1939-1963) en 1 v.; vol. 26-30 (1964-1968) en 1 v.; vol. 31-40 (1969-1978) en 1 v.