APA (7th ed.) Citation

Hopkins, J., Hughes, H. K., & Kahl, L. K. (2018). The Harriet Lane Handbook: A manual for pediatric house officers (21st ed.). Elsevier.

Chicago Style (17th ed.) Citation

Hopkins, Johns, Helen K. Hughes, and Lauren K. Kahl. The Harriet Lane Handbook: A Manual for Pediatric House Officers. 21st ed. Philadelphia, PA: Elsevier, 2018.

MLA (9th ed.) Citation

Hopkins, Johns, et al. The Harriet Lane Handbook: A Manual for Pediatric House Officers. 21st ed. Elsevier, 2018.