Cita APA (7a ed.)

National Planning Association & National Policy Association (U.S.). (1982). Looking ahead. National Planning Association.

Cita Chicago Style (17a ed.)

National Planning Association y National Policy Association (U.S.). Looking Ahead. Washington, D.C.: National Planning Association, 1982.

Cita MLA (9a ed.)

National Planning Association y National Policy Association (U.S.). Looking Ahead. National Planning Association, 1982.