Cita APA (7a ed.)

Thapar, A., Hervas, A., & McGuffin, P. (1995). Childhood hyperactivity scores are highly heritable and show sibling competition effects: Twin study evidence. Behavior genetics, 25(6), 537-544.

Cita Chicago Style (17a ed.)

Thapar, A., A. Hervas, y P. McGuffin. "Childhood Hyperactivity Scores Are Highly Heritable and Show Sibling Competition Effects: Twin Study Evidence." Behavior Genetics 25, no. 6 (1995): 537-544.

Cita MLA (8a ed.)

Thapar, A., et al. "Childhood Hyperactivity Scores Are Highly Heritable and Show Sibling Competition Effects: Twin Study Evidence." Behavior Genetics, vol. 25, no. 6, 1995, pp. 537-544.