APA

Smith N., . (1989). The United States since 1945. New York: The bookwright press.

Chicago

Smith Nigel, . 1989. The United States since 1945. New York: The bookwright press.

Harvard

Smith N., . (1989). The United States since 1945. New York: The bookwright press.

MLA

Smith Nigel, . The United States since 1945. New York: The bookwright press. 1989.