APA aipamena

(1989). Test booklet: (Blue level). New York: Mc Dougal, Littel & Company.

Chicago Style aipamena

Test Booklet: (Blue Level). New York: Mc Dougal, Littel & Company, 1989.

MLA aipamena

Test Booklet: (Blue Level). New York: Mc Dougal, Littel & Company, 1989.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.