Citazione Stile APA (7a Edizione)

Friedmann, E. A., & Havighurst, R. J. (1954). The meaning of work and retirement. University of Chicago Press.

Citazione stile Chigago Style (17a edizione)

Friedmann, Eugene A., e Robert James Havighurst. The Meaning of Work and Retirement. Chicago]: University of Chicago Press, 1954.

Citatione MLA (9a ed.)

Friedmann, Eugene A., e Robert James Havighurst. The Meaning of Work and Retirement. University of Chicago Press, 1954.