Gabel, D. L. (1994). Handbook of research on science teaching and learning: A project of the National Science Teachers Association. MacMillan.
Cita Chicago (17th ed.)Gabel, Dorothy L. Handbook of Research on Science Teaching and Learning: A Project of the National Science Teachers Association. Nueva York: MacMillan, 1994.
Cita MLA (9th ed.)Gabel, Dorothy L. Handbook of Research on Science Teaching and Learning: A Project of the National Science Teachers Association. MacMillan, 1994.
Atenció: Aquestes cites poden no estar 100% correctes.