Citação norma APA

(2021). National geographic: Mysteries of a virus the kill us by the millions. But without them, life is impossible. Washington, DC: National Geographic Society.

Citação norma Chicago

National Geographic: Mysteries of a Virus the Kill Us By the Millions. But Without Them, Life Is Impossible. Washington, DC: National Geographic Society, 2021.

Citação norma MLA

National Geographic: Mysteries of a Virus the Kill Us By the Millions. But Without Them, Life Is Impossible. Washington, DC: National Geographic Society, 2021.

Nota: a formatação da citação pode não corresponder 100% ao definido pela respectiva norma.