Joyce, T., & Kaestner, R. (1995). State reproductive policies and adolescent pregnancy resolution: The case of parental involvment laws. National Bureau of Economic Research.
Chicago-viite (17. p.)Joyce, Theodore, ja Robert Kaestner. State Reproductive Policies and Adolescent Pregnancy Resolution: The Case of Parental Involvment Laws. Cambridge: National Bureau of Economic Research, 1995.
MLA-viite (9. p.)Joyce, Theodore, ja Robert Kaestner. State Reproductive Policies and Adolescent Pregnancy Resolution: The Case of Parental Involvment Laws. National Bureau of Economic Research, 1995.
Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.