Dyfyniad APA

Nijhoff, M. (1970). The future is tomorrow: 17 prospective studies. Netherlands: The Hague.

Dyfyniad Arddull Chicago

Nijhoff, Martinus. The Future Is Tomorrow: 17 Prospective Studies. Netherlands: The Hague, 1970.

Dyfyniad MLA

Nijhoff, Martinus. The Future Is Tomorrow: 17 Prospective Studies. Netherlands: The Hague, 1970.

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