APA (7th ed.) Citation
Sureda, X., & ET AL. (2014). Impact of the Spanish smoke-free legislation on adult, non-smoker exposure to secondhand smoke: Cross-sectional surveys before (2004) and after (2012) legislation. https://doi.org/10.1371/journal.pone.0089430
Chicago Style (17th ed.) Citation
Sureda, X., and ET AL. Impact of the Spanish Smoke-free Legislation on Adult, Non-smoker Exposure to Secondhand Smoke: Cross-sectional Surveys Before (2004) and After (2012) Legislation. 2014. https://doi.org/10.1371/journal.pone.0089430.
MLA (9th ed.) Citation
Sureda, X., and ET AL. Impact of the Spanish Smoke-free Legislation on Adult, Non-smoker Exposure to Secondhand Smoke: Cross-sectional Surveys Before (2004) and After (2012) Legislation. 2014. https://doi.org/10.1371/journal.pone.0089430.
Warning: These citations may not always be 100% accurate.