APA (7th ed.) Citation

BS, F., D, B., RV, B., TJ, B., GR, J., & RH, S. (1991). Analysis for commonly abused drugs in urine at selected threshold ("cutoff") concentrations. Clinical chemistry, 37(4), 586.

Chicago Style (17th ed.) Citation

BS, Finkle, Black D, Blanke RV, Butler TJ, Jones GR, and Sample RH. "Analysis for Commonly Abused Drugs in Urine at Selected Threshold ("cutoff") Concentrations." Clinical Chemistry 37, no. 4 (1991): 586.

MLA (9th ed.) Citation

BS, Finkle, et al. "Analysis for Commonly Abused Drugs in Urine at Selected Threshold ("cutoff") Concentrations." Clinical Chemistry, vol. 37, no. 4, 1991, p. 586.