APA

Brzezinski Zbigniew K,, . (1961). The Soviet block : Unity and conflict. New York: Fredrick A Praeger.

Chicago

Brzezinski Zbigniew K,, . 1961. The Soviet block : Unity and conflict. New York: Fredrick A Praeger.

Harvard

Brzezinski Zbigniew K,, . (1961). The Soviet block : Unity and conflict. New York: Fredrick A Praeger.

MLA

Brzezinski Zbigniew K,, . The Soviet block : Unity and conflict. New York: Fredrick A Praeger. 1961.