APA (7th ed.) Citation

PD, N., DJ, B., 3rd, R. C., PJ, H., T, R., EJ, S., . . . DJ, K. (1997). Clinical factors contributing to the differential diagnosis of primary insomnia and insomnia related to mental disorders. The American journal of psychiatry, 154(10), 1412. https://doi.org/10.1176/ajp.154.10.1412

Chicago Style (17th ed.) Citation

PD, Nowell, et al. "Clinical Factors Contributing to the Differential Diagnosis of Primary Insomnia and Insomnia Related to Mental Disorders." The American Journal of Psychiatry 154, no. 10 (1997): 1412. https://doi.org/10.1176/ajp.154.10.1412.

MLA (9th ed.) Citation

PD, Nowell, et al. "Clinical Factors Contributing to the Differential Diagnosis of Primary Insomnia and Insomnia Related to Mental Disorders." The American Journal of Psychiatry, vol. 154, no. 10, 1997, p. 1412, https://doi.org/10.1176/ajp.154.10.1412.