APA

Kolko G., . (1976). Main currents in modern American history. New York: Harper & Row.

Chicago

Kolko Gabriel, . 1976. Main currents in modern American history. New York: Harper & Row.

Harvard

Kolko G., . (1976). Main currents in modern American history. New York: Harper & Row.

MLA

Kolko Gabriel, . Main currents in modern American history. New York: Harper & Row. 1976.