Cita APA (7th ed.)

Butterfield, S. (1995). Educational objectives and national assessment. Open University Press.

Cita Chicago (17th ed.)

Butterfield, Sue. Educational Objectives and National Assessment. Buckingham: Open University Press, 1995.

Cita MLA (9th ed.)

Butterfield, Sue. Educational Objectives and National Assessment. Open University Press, 1995.