APA (7th ed.) Citation

Emma Littlehales, Eric Levi, Nikki Mills, Russell Metcalfe, & James Hamill. (2018). Double button battery ingestion - The "macaroon" sign. Elsevier.

Chicago Style (17th ed.) Citation

Emma Littlehales, Eric Levi, Nikki Mills, Russell Metcalfe, and James Hamill. Double Button Battery Ingestion - The "Macaroon" Sign. Elsevier, 2018.

MLA (9th ed.) Citation

Emma Littlehales, et al. Double Button Battery Ingestion - The "Macaroon" Sign. Elsevier, 2018.