APA (7th ed.) Citation

Nelson, M. G., & Riddle, N. K. (2004). Sampling and analysis for optimal ore-grade control. Mining Engineering, 56(4), 55.

Chicago Style (17th ed.) Citation

Nelson, M. G., and N. K. Riddle. "Sampling and Analysis for Optimal Ore-grade Control." Mining Engineering 56, no. 4 (2004): 55.

MLA (9th ed.) Citation

Nelson, M. G., and N. K. Riddle. "Sampling and Analysis for Optimal Ore-grade Control." Mining Engineering, vol. 56, no. 4, 2004, p. 55.