Cita APA (7a ed.)

Ewins, D. (1984). Modal testing: Theory and practice (1a ed.). Research Studies Press Ltd.

Cita Chicago Style (17a ed.)

Ewins, D.J. Modal Testing: Theory and Practice. 1a ed. England: Research Studies Press Ltd, 1984.

Cita MLA (9a ed.)

Ewins, D.J. Modal Testing: Theory and Practice. 1a ed. Research Studies Press Ltd, 1984.