Cita APA (7th ed.)
Casad, E. H. (1974). Dialect, intelligibility, testing. University of Oklahoma.
Cita Chicago (17th ed.)
Casad, Eugene H. Dialect, Intelligibility, Testing. Norman, USA: University of Oklahoma, 1974.
Cita MLA (9th ed.)
Casad, Eugene H. Dialect, Intelligibility, Testing. University of Oklahoma, 1974.
Atenció: Aquestes cites poden no estar 100% correctes.