Cita APA (7th ed.)

Hobbs, F. B., & Damon, B. L. (1996). 65+ in the United States. U.S. Government Printing Office.

Cita Chicago (17th ed.)

Hobbs, Frank B., i Bonnie L. Damon. 65+ in the United States. Washington D.C: U.S. Government Printing Office, 1996.

Cita MLA (9th ed.)

Hobbs, Frank B., i Bonnie L. Damon. 65+ in the United States. U.S. Government Printing Office, 1996.