The last unknown fact.

MLA

Fabre, John W. “The Last Unknown Fact.” Nature Immunology, vol. 3, no. 1, Jan. 2002, p. 3. EBSCOhost, https://doi.org/10.1038/ni0102-3a.

APA

Fabre, J. W. (2002). The last unknown fact. Nature Immunology, 3(1), 3. https://doi.org/10.1038/ni0102-3a

Chicago

Fabre, John W. 2002. “The Last Unknown Fact.” Nature Immunology 3 (1): 3. doi:10.1038/ni0102-3a.