Van den Berghe, F. (1935-04-18). pr001041: Links of rechts ? Koekoek 4(1935)51.
Lua i Stíl Chicago (17ú heag.)Van den Berghe, Frits. "Pr001041: Links of Rechts ?" Koekoek 4(1935)51 1935-04-18.
Lua MLA (8ú heag.)Van den Berghe, Frits. "Pr001041: Links of Rechts ?" Koekoek 4(1935)51, 1935-04-18.
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