APA (7th ed.) Citation

Black, J., & Bradley, J. F. (1973). Essential mathematics for economists. By J. Black and J.F. Bradley. John Wiley.

Chicago Style (17th ed.) Citation

Black, J., and J F. Bradley. Essential Mathematics for Economists. By J. Black and J.F. Bradley. New York: John Wiley, 1973.

MLA (9th ed.) Citation

Black, J., and J F. Bradley. Essential Mathematics for Economists. By J. Black and J.F. Bradley. John Wiley, 1973.