APA (7th ed.) Citation

Maria Ganczak, Oskar Pasek, Łukasz Duda - Duma, Dawid Świstara, & Marcin Korzeń. (2021). Use of masks in public places in Poland during SARS-Cov-2 epidemic: A covert observational study. BMC.

Chicago Style (17th ed.) Citation

Maria Ganczak, Oskar Pasek, Łukasz Duda - Duma, Dawid Świstara, and Marcin Korzeń. Use of Masks in Public Places in Poland During SARS-Cov-2 Epidemic: A Covert Observational Study. BMC, 2021.

MLA (9th ed.) Citation

Maria Ganczak, et al. Use of Masks in Public Places in Poland During SARS-Cov-2 Epidemic: A Covert Observational Study. BMC, 2021.