Cita APA (7th ed.)

Husen, T., & Keeves, J. P. (1991). Issues in science education: Science competence in social and ecological context. Pergamon.

Cita Chicago (17th ed.)

Husen, Torsten, i John P. Keeves. Issues in Science Education: Science Competence in Social and Ecological Context. Oxford: Pergamon, 1991.

Cita MLA (9th ed.)

Husen, Torsten, i John P. Keeves. Issues in Science Education: Science Competence in Social and Ecological Context. Pergamon, 1991.