APA-viite (7. p.)
PUNAMAKI, R., & ET AL. (2007). USE OF INFORMATION AND COMMUNICATION TECHNOLOGY (ICT) PERCEIVED HEALTH IN ADOLESCENCE: THE ROLE OF SLEEPING HABITS AND WAKING TIME TIREDNESS.
Chicago-viite (17. p.)
PUNAMAKI, R.L, ja ET AL. USE OF INFORMATION AND COMMUNICATION TECHNOLOGY (ICT) PERCEIVED HEALTH IN ADOLESCENCE: THE ROLE OF SLEEPING HABITS AND WAKING TIME TIREDNESS. 2007.
MLA-viite (9. p.)
PUNAMAKI, R.L, ja ET AL. USE OF INFORMATION AND COMMUNICATION TECHNOLOGY (ICT) PERCEIVED HEALTH IN ADOLESCENCE: THE ROLE OF SLEEPING HABITS AND WAKING TIME TIREDNESS. 2007.
Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.