APA (7th ed.) Citation

Koch, L., Frommhold, D., Beedgen, B., Ruef, P., & Poeschl, J. Prophylactic Administration of Surfactant in Extremely Premature Infants. Wiley.

Chicago Style (17th ed.) Citation

Koch, Lutz, David Frommhold, Bernd Beedgen, Peter Ruef, and Johannes Poeschl. Prophylactic Administration of Surfactant in Extremely Premature Infants. Wiley.

MLA (9th ed.) Citation

Koch, Lutz, et al. Prophylactic Administration of Surfactant in Extremely Premature Infants. Wiley.