APA (7th ed.) Citation

Halal, W. E. (1999). Twenty-first century economics. Macmillan Press.

Chicago Style (17th ed.) Citation

Halal, William E. Twenty-first Century Economics. London: Macmillan Press, 1999.

MLA (9th ed.) Citation

Halal, William E. Twenty-first Century Economics. Macmillan Press, 1999.