[Briefwisseling J. Schotte-Securex Gent, 20 juni 1980].

MLA

[briefwisseling J. Schotte-securex Gent, 20 Juni 1980]. 1980.

APA

(1980). [Briefwisseling J. Schotte-Securex Gent, 20 juni 1980]. .

Chicago

[briefwisseling J. Schotte-Securex Gent, 20 Juni 1980].