Cita APA (7th ed.)
Nisbet, J., & Entwistle, N. (1970). Educational research methods.
Cita Chicago (17th ed.)
Nisbet, J.D, i N.J Entwistle. Educational Research Methods. 1970.
Cita MLA (9th ed.)
Nisbet, J.D, i N.J Entwistle. Educational Research Methods. 1970.
Atenció: Aquestes cites poden no estar 100% correctes.