Jeffries, C. (1967). Illiteracy.
Chicago Style aipamenaJeffries, Charles. Illiteracy. 1967.
MLA aipamenaJeffries, Charles. Illiteracy. 1967.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.
Jeffries, C. (1967). Illiteracy.
Chicago Style aipamenaJeffries, Charles. Illiteracy. 1967.
MLA aipamenaJeffries, Charles. Illiteracy. 1967.