APA

Steffens D. C., Zdanys K. F., . (2023). Textbook of geriatric psychiatry. Washington, D.C: American Psychiatric Association Publishing.

Chicago

Steffens David C, Zdanys Kristina F, . 2023. Textbook of geriatric psychiatry. Washington, D.C: American Psychiatric Association Publishing.

Harvard

Steffens D. C., Zdanys K. F., . (2023). Textbook of geriatric psychiatry. Washington, D.C: American Psychiatric Association Publishing.

MLA

Steffens David C, Zdanys Kristina F, . Textbook of geriatric psychiatry. Washington, D.C: American Psychiatric Association Publishing. 2023.