APA (7th ed.) Citation

JR, A., R, E., Jr, F. E., & HD, G. (1969). Analytical bias in a quality control scheme. Clinical chemistry, 15(11), 1039.

Chicago Style (17th ed.) Citation

JR, Allen, Earp R, Farrell EC Jr, and Grümer HD. "Analytical Bias in a Quality Control Scheme." Clinical Chemistry 15, no. 11 (1969): 1039.

MLA (9th ed.) Citation

JR, Allen, et al. "Analytical Bias in a Quality Control Scheme." Clinical Chemistry, vol. 15, no. 11, 1969, p. 1039.