APA-čujuhus (7. p.)
Dixson, R. J., & Andújar García, J. P. Complete Course in English: Book 4. Regents.
Chicago-čujuhus (17. p.)
Dixson, Robert J., juo Juan Pedro Andújar García. Complete Course in English: Book 4. Nueva York, EUA: Regents.
MLA-čujuhus (9. p.)
Dixson, Robert J., juo Juan Pedro Andújar García. Complete Course in English: Book 4. Regents.
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