APA aipamena

Postlethwaite, T. N. (1991). The IEA study of science II: Science achievement in twenty-three countries. Pergamon.

Chicago Style aipamena

Postlethwaite, T. Neville. The IEA Study of Science II: Science Achievement in Twenty-three Countries. Oxford, London: Pergamon, 1991.

MLA aipamena

Postlethwaite, T. Neville. The IEA Study of Science II: Science Achievement in Twenty-three Countries. Pergamon, 1991.