APA-viite (7. p.)

Vasco Ricoca Peixoto, Carla Nunes, & Alexandre Abrantes. (2020). Epidemic Surveillance of Covid-19: Considering Uncertainty and Under-Ascertainment. Karger Publishers.

Chicago-viite (17. p.)

Vasco Ricoca Peixoto, Carla Nunes, ja Alexandre Abrantes. Epidemic Surveillance of Covid-19: Considering Uncertainty and Under-Ascertainment. Karger Publishers, 2020.

MLA-viite (9. p.)

Vasco Ricoca Peixoto, et al. Epidemic Surveillance of Covid-19: Considering Uncertainty and Under-Ascertainment. Karger Publishers, 2020.

Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.