APA aipamena

(1985). Basic skills in english: (Teacher edition). New York: Mc Dougal, Littel & Company.

Chicago Style aipamena

Basic Skills in English: (Teacher Edition). New York: Mc Dougal, Littel & Company, 1985.

MLA aipamena

Basic Skills in English: (Teacher Edition). New York: Mc Dougal, Littel & Company, 1985.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.