APA aipamena

Helen Dwight Reid Educational Foundation. (1989). Preventing school failure. Heldref Publications.

Chicago Style aipamena

Helen Dwight Reid Educational Foundation. Preventing School Failure. Washington, D.C.: Heldref Publications, 1989.

MLA aipamena

Helen Dwight Reid Educational Foundation. Preventing School Failure. Heldref Publications, 1989.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.