APA (7th ed.) Citation

Leontief, W. W. (1966). Essays in economics: Theories and theorizing. Oxford University Press.

Chicago Style (17th ed.) Citation

Leontief, Wassily W. Essays in Economics: Theories and Theorizing. New York [etc.]: Oxford University Press, 1966.

MLA (9th ed.) Citation

Leontief, Wassily W. Essays in Economics: Theories and Theorizing. Oxford University Press, 1966.