Παραπομπή APA

Handlin, O. (1966). American people in the twentieth century (2nd ed.).

Παραπομπή Chicago Style

Handlin, Oscar. American People in the Twentieth Century. 2nd ed. 1966.

Παραπομπή MLA

Handlin, Oscar. American People in the Twentieth Century. 2nd ed. 1966.