00578cam a22002051 4500 af 48002191 DLC 20260227110854.0 841119s1946 ne 000 0 dut c af 48002191 (OCoLC)11401556 Mass. Inst. of Tech. Library MCM DLC premarc HE8699.N4 P6 Poort, Jac., 1890- Nationale omroep of omroepvereenigingen? Wageningen, Gebr. Zomer en Keuning [1946] 15 p. 24 cm. Radio broadcasting Netherlands. 4916 4916