Citazione APA

James Kirby Martin...[et al.]. (1993). America and its people. New York: HarperCollins College.

Stile di citazione Chicago

James Kirby Martin...[et al.]. America and Its People. New York: HarperCollins College, 1993.

Citazione MLA

James Kirby Martin...[et al.]. America and Its People. New York: HarperCollins College, 1993.

Attenzione: Queste citazioni potrebbero non essere precise al 100%.