Johan Van Loon.

MLA

Beeren, W.A.L. Johan Van Loon. [S.l.]: [s.n.], 1978.

APA

Beeren, W. (1978). Johan Van Loon. [S.l.]: [s.n.].

Chicago

Beeren, W.A.L. Johan Van Loon. [S.l.]: [s.n.], 1978.