50 years ago in the Journal of Pediatrics: The epidemiology of prematurity.

MLA

Greenberg, James M., and Louis J. Muglia. “50 Years Ago in the Journal of Pediatrics: The Epidemiology of Prematurity.” The Journal of Pediatrics, vol. 165, no. 6, Dec. 2014, p. 1139. EBSCOhost, https://doi.org/10.1016/j.jpeds.2014.06.045.

APA

Greenberg, J. M., & Muglia, L. J. (2014). 50 years ago in the Journal of Pediatrics: The epidemiology of prematurity. The Journal of Pediatrics, 165(6), 1139. https://doi.org/10.1016/j.jpeds.2014.06.045

Chicago

Greenberg, James M, and Louis J Muglia. 2014. “50 Years Ago in the Journal of Pediatrics: The Epidemiology of Prematurity.” The Journal of Pediatrics 165 (6): 1139. doi:10.1016/j.jpeds.2014.06.045.