Cita APA (7a ed.)
Casad, E. H. (1974). Dialect, intelligibility, testing. University of Oklahoma.
Cita Chicago Style (17a ed.)
Casad, Eugene H. Dialect, Intelligibility, Testing. Norman, USA: University of Oklahoma, 1974.
Cita MLA (9a ed.)
Casad, Eugene H. Dialect, Intelligibility, Testing. University of Oklahoma, 1974.
警告：这些引文格式不一定是100％准确.