Citação norma APA

Neckelmann, D., Mykletun, A., & Dahl, A. A. (2007). Chronic Insomnia as a Risk Factor for Developing Anxiety and Depression. Associated Professional Sleep Societies, LLC.

Citação norma Chicago

Neckelmann, Dag, Amstein Mykletun, and Alv A. Dahl. Chronic Insomnia As a Risk Factor for Developing Anxiety and Depression. Associated Professional Sleep Societies, LLC, 2007.

Citação norma MLA

Neckelmann, Dag, Amstein Mykletun, and Alv A. Dahl. Chronic Insomnia As a Risk Factor for Developing Anxiety and Depression. Associated Professional Sleep Societies, LLC, 2007.

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