APA

National Institute of Mental Health (U.S.), . (2016). Generalized anxiety disorder: when worry gets out of control. Bethesda, MD: U.S. Department of Health and Human Services, National Institutes of Health, National Institute of Mental Health.

Chicago

National Institute of Mental Health (U.S.), . 2016. Generalized anxiety disorder: when worry gets out of control. Bethesda, MD: U.S. Department of Health and Human Services, National Institutes of Health, National Institute of Mental Health.

Harvard

National Institute of Mental Health (U.S.), . (2016). Generalized anxiety disorder: when worry gets out of control. Bethesda, MD: U.S. Department of Health and Human Services, National Institutes of Health, National Institute of Mental Health.

MLA

National Institute of Mental Health (U.S.), . Generalized anxiety disorder: when worry gets out of control. Bethesda, MD: U.S. Department of Health and Human Services, National Institutes of Health, National Institute of Mental Health. 2016.