Cita APA (7th ed.)

Friedman, L. M. (2002). American law in the 20th century. Yale University.

Cita Chicago (17th ed.)

Friedman, Lawrence M. American Law in the 20th Century. New Haven: Yale University, 2002.

Cita MLA (9th ed.)

Friedman, Lawrence M. American Law in the 20th Century. Yale University, 2002.