APA

Calleo D. P., . (1987). Beyond american hegemony. New York: Twentieth Century Fund.

Chicago

Calleo David P, . 1987. Beyond american hegemony. New York: Twentieth Century Fund.

Harvard

Calleo D. P., . (1987). Beyond american hegemony. New York: Twentieth Century Fund.

MLA

Calleo David P, . Beyond american hegemony. New York: Twentieth Century Fund. 1987.