APA (7th ed.) Citation

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

Chicago Style (17th ed.) Citation

Black, John, and James F. Bradley. Essential Mathematics for Economists. 2. ed. Chichester [u.a.]: Wiley, 1980.

MLA (9th ed.) Citation

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