Cita APA (7th ed.)
ebrary, Inc, & Levinson, R. (1994). Teaching science. Routledge in association with the Open University.
Cita Chicago (17th ed.)
ebrary, Inc, i Ralph Levinson. Teaching Science. London ; New York: Routledge in association with the Open University, 1994.
Cita MLA (9th ed.)
ebrary, Inc, i Ralph Levinson. Teaching Science. Routledge in association with the Open University, 1994.
Atenció: Aquestes cites poden no estar 100% correctes.