APA

Handlin O., . (1954). The American people in the twentieth century. Cambridge, Mass: Harvard University Press.

Chicago

Handlin Oscar, . 1954. The American people in the twentieth century. Cambridge, Mass: Harvard University Press.

Harvard

Handlin O., . (1954). The American people in the twentieth century. Cambridge, Mass: Harvard University Press.

MLA

Handlin Oscar, . The American people in the twentieth century. Cambridge, Mass: Harvard University Press. 1954.