Cita APA (7a ed.)

Gagliardo, D. (1949). American social insurance. Harper & Brothers.

Cita Chicago Style (17a ed.)

Gagliardo, Domenico. American Social Insurance. New York: Harper & Brothers, 1949.

Cita MLA (9a ed.)

Gagliardo, Domenico. American Social Insurance. Harper & Brothers, 1949.