APA-čujuhus (7. p.)
Bushnell, P. P. (1930). An analytical Contrast of oral with written English.
Chicago-čujuhus (17. p.)
Bushnell, Paul P. An Analytical Contrast of Oral with Written English. New York, 1930.
MLA-čujuhus (9. p.)
Bushnell, Paul P. An Analytical Contrast of Oral with Written English. 1930.
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