APA (7th ed.) Citation

Project Idea. (1979). Directory, innovative developments in aging ([Updated and rev. ed.].). The Project.

Chicago Style (17th ed.) Citation

Project Idea. Directory, Innovative Developments in Aging. [Updated and rev. ed.]. San Francisco, Calif.: The Project, 1979.

MLA (9th ed.) Citation

Project Idea. Directory, Innovative Developments in Aging. [Updated and rev. ed.]. The Project, 1979.