Gaya APA

Ponsioen, J. (1968). National development. A sociological contribution. - Publications of the Institute of Social Studies. Series Maior, Vol. XVIII. . Den Haag: Mouton.

Gaya MLA

Ponsioen, J.A.. "National development. A sociological contribution. - Publications of the Institute of Social Studies. Series Maior, Vol. XVIII. ". Den Haag: Mouton, 1968. Buku.