Die clockputsage.
MLA
de Keysere, Paulus, and Oscar Bonnevalle. Die Clockputsage. Sint-Martens-Latem: Sint-Martens-Latem kunstenaarsdorp, 1964.
APA
de Keysere, P., & Bonnevalle, O. (1964). Die clockputsage. Sint-Martens-Latem: Sint-Martens-Latem kunstenaarsdorp.
Chicago
de Keysere, Paulus, and Oscar Bonnevalle. Die Clockputsage. Sint-Martens-Latem: Sint-Martens-Latem kunstenaarsdorp, 1964.