Jef Wauters.

MLA

[S.n.]. Jef Wauters. [s.l.]: [s.n.], ..

APA

[S.n.], [. (..). Jef Wauters. [s.l.]: [s.n.].

Chicago

[S.n.] Jef Wauters. [s.l.]: [s.n.], ...