APA (7th ed.) Citation

PD, D., & GD, P. (1979). The Brown nasal mask. A new scavenging mask for dental anaesthesia. British dental journal, 146(8), 246. https://doi.org/10.1038/sj.bdj.4804238

Chicago Style (17th ed.) Citation

PD, Davis, and Parbrook GD. "The Brown Nasal Mask. A New Scavenging Mask for Dental Anaesthesia." British Dental Journal 146, no. 8 (1979): 246. https://doi.org/10.1038/sj.bdj.4804238.

MLA (9th ed.) Citation

PD, Davis, and Parbrook GD. "The Brown Nasal Mask. A New Scavenging Mask for Dental Anaesthesia." British Dental Journal, vol. 146, no. 8, 1979, p. 246, https://doi.org/10.1038/sj.bdj.4804238.