APA (7th ed.) Citation

Mulligan, C. B., & Sala-i-Martin, X. (1997). The optimum quantity of money: Theory and evidence.

Chicago Style (17th ed.) Citation

Mulligan, Casey B., and Xavier Sala-i-Martin. The Optimum Quantity of Money: Theory and Evidence. Cambridge, Mass, 1997.

MLA (9th ed.) Citation

Mulligan, Casey B., and Xavier Sala-i-Martin. The Optimum Quantity of Money: Theory and Evidence. 1997.