APA (7th ed.) Citation

Hammarverg, M. (1990). Penn inventory for posttraumatic stress disorder. Dept. of Anthropology, University of Pennsylvania.

Chicago Style (17th ed.) Citation

Hammarverg, Melvyn. Penn Inventory for Posttraumatic Stress Disorder. Philadelphia, PA: Dept. of Anthropology, University of Pennsylvania, 1990.

MLA (9th ed.) Citation

Hammarverg, Melvyn. Penn Inventory for Posttraumatic Stress Disorder. Dept. of Anthropology, University of Pennsylvania, 1990.