READERS DIGEST. (1997). A TREASURY TO JOKES. READERS DIGEST.
Chicago Style aipamenaREADERS DIGEST. A TREASURY TO JOKES. LONDON: READERS DIGEST, 1997.
MLA aipamenaREADERS DIGEST. A TREASURY TO JOKES. READERS DIGEST, 1997.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.