Opendeurdag Wase Polders: 9 juni '74.

MLA

Opendeurdag Wase Polders: 9 Juni '74. s.l, 1974.

APA

(1974). Opendeurdag Wase Polders: 9 juni '74. s.l.

Chicago

Opendeurdag Wase Polders: 9 Juni '74. s.l., 1974.