Franklin

MLA

Helderenberg, Gery. Ante Terminum. Hasselt [Belgium]: Heideland-Orbis, 1971.

APA

Helderenberg, G. (1971). Ante terminum. Hasselt [Belgium]: Heideland-Orbis.

Chicago

Helderenberg, Gery. Ante Terminum. Hasselt [Belgium]: Heideland-Orbis, 1971.