Citação norma APA

Christensen, K., Petersen, I., Skytthe, A., Herskind, A. M., McGue, M., & Bingley, P. (2006). Comparison of academic performance of twins and singletons in adolescence: Follow-up study. BMJ Publishing Group Ltd.

Citação norma Chicago

Christensen, Kaare, Inge Petersen, Axel Skytthe, Anne Maria Herskind, Matt McGue, e Paul Bingley. Comparison of Academic Performance of Twins and Singletons in Adolescence: Follow-up Study. BMJ Publishing Group Ltd, 2006.

Citação norma MLA

Christensen, Kaare, et al. Comparison of Academic Performance of Twins and Singletons in Adolescence: Follow-up Study. BMJ Publishing Group Ltd, 2006.

Nota: a formatação da citação pode não corresponder 100% ao definido pela respectiva norma.