De Moderne wereld.

MLA

Lynton, Norbert, and Enno Develing. De Moderne Wereld. Hasselt: Heideland, 1966.

APA

Lynton, N., & Develing, E. (1966). De Moderne wereld. Hasselt: Heideland.

Chicago

Lynton, Norbert, and Enno Develing. De Moderne Wereld. Hasselt: Heideland, 1966.