(2008). National Longitudinal Study of Adolescent Health (Add Health), 1994-2008 Kathleen Mullan Harris,J. Richard Udry. [electronic resource].
Chicago Style (17th ed.) ZitazioaNational Longitudinal Study of Adolescent Health (Add Health), 1994-2008 Kathleen Mullan Harris,J. Richard Udry. [electronic Resource]. 2008.
MLA (9th ed.) ZitazioaNational Longitudinal Study of Adolescent Health (Add Health), 1994-2008 Kathleen Mullan Harris,J. Richard Udry. [electronic Resource]. 2008.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.