Cita APA (7a ed.)

Sheppard, H. L. (1977). The graying of working America. The Free Press.

Cita Chicago Style (17a ed.)

Sheppard, Harold L. The Graying of Working America. The Free Press, 1977.

Cita MLA (9a ed.)

Sheppard, Harold L. The Graying of Working America. The Free Press, 1977.