Postlethwaite, T. N. (1991). The IEA study of science II: Science achievement in twenty-three countries. Pergamon.
Chicago Style (17. basım) AtıfPostlethwaite, T. Neville. The IEA Study of Science II: Science Achievement in Twenty-three Countries. Oxford, London: Pergamon, 1991.
MLA (9th ed.) AtıfPostlethwaite, T. Neville. The IEA Study of Science II: Science Achievement in Twenty-three Countries. Pergamon, 1991.
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