APA

(1988). International studies in educational achievement. Oxford [u.a.]: Pergamon Press.

Chicago

1988. International studies in educational achievement. Oxford [u.a.]: Pergamon Press.

Harvard

(1988). International studies in educational achievement. Oxford [u.a.]: Pergamon Press.

MLA

International studies in educational achievement. Oxford [u.a.]: Pergamon Press. 1988.