Vrijheid.

MLA

Studiedag Brussel 13 dec. 1964. Vrijheid. Brussel, 1965.

APA

Studiedag Brussel 13 dec. 1964, S. Brussel 13 dec. 1964. (1965). Vrijheid. Brussel.

Chicago

Studiedag Brussel 13 dec. 1964 Vrijheid. Brussel, 1965.