APA (7th ed.) Citation

Black, J., & Bradley, J. F. (1980). Essential mathematics for economists (2nd ed.). Wiley.

Chicago Style (17th ed.) Citation

Black, John, and J. F. Bradley. Essential Mathematics for Economists. 2nd ed. Chichester [Eng.]: Wiley, 1980.

MLA (9th ed.) Citation

Black, John, and J. F. Bradley. Essential Mathematics for Economists. 2nd ed. Wiley, 1980.