APA

Sandburg C., . (1936). The people, yes. New York: Harcourt, Brace and company.

Chicago

Sandburg Carl, . 1936. The people, yes. New York: Harcourt, Brace and company.

Harvard

Sandburg C., . (1936). The people, yes. New York: Harcourt, Brace and company.

MLA

Sandburg Carl, . The people, yes. New York: Harcourt, Brace and company. 1936.