APA (7th ed.) Citation

Modell, B. (1989). Cost-benefit analysis and prenatal diagnosis. Lancet, 334(8674), 1280. https://doi.org/10.1016/s0140-6736(89)91889-8

Chicago Style (17th ed.) Citation

Modell, B. "Cost-benefit Analysis and Prenatal Diagnosis." Lancet 334, no. 8674 (1989): 1280. https://doi.org/10.1016/s0140-6736(89)91889-8.

MLA (9th ed.) Citation

Modell, B. "Cost-benefit Analysis and Prenatal Diagnosis." Lancet, vol. 334, no. 8674, 1989, p. 1280, https://doi.org/10.1016/s0140-6736(89)91889-8.