APA način citiranja

Heerfordt, C., & Heerfordt, I. (2020). Has there been an increased interest in smoking cessation during the first months of the COVID-19 pandemic? A Google Trends study. Public Health.

Čikaški stil citiranja

Heerfordt, C., i I.M Heerfordt. "Has There Been an Increased Interest in Smoking Cessation During the First Months of the COVID-19 Pandemic? A Google Trends Study." Public Health 2020.

MLA način citiranja

Heerfordt, C., i I.M Heerfordt. "Has There Been an Increased Interest in Smoking Cessation During the First Months of the COVID-19 Pandemic? A Google Trends Study." Public Health 2020.