APA (7th ed.) Citation

Fiona Fleck. (2004). SARS virus returns to China as scientists race to find effective vaccine. The World Health Organization.

Chicago Style (17th ed.) Citation

Fiona Fleck. SARS Virus Returns to China as Scientists Race to Find Effective Vaccine. The World Health Organization, 2004.

MLA (9th ed.) Citation

Fiona Fleck. SARS Virus Returns to China as Scientists Race to Find Effective Vaccine. The World Health Organization, 2004.

Warning: These citations may not always be 100% accurate.