APA

Abbott L., . (1960). Economics and the modern world. New York: Harcourt, Brace.

Chicago

Abbott Lawrence, . 1960. Economics and the modern world. New York: Harcourt, Brace.

Harvard

Abbott L., . (1960). Economics and the modern world. New York: Harcourt, Brace.

MLA

Abbott Lawrence, . Economics and the modern world. New York: Harcourt, Brace. 1960.