Cite
Abstractions.
MLA
“Abstractions.” Nature, vol. 449, no. 7158, Sept. 2007, p. xi. EBSCOhost, https://doi.org/10.1038/7158xib.
APA
Abstractions. (2007). Nature, 449(7158), xi. https://doi.org/10.1038/7158xib
Chicago
“Abstractions.” 2007. Nature 449 (7158): xi. doi:10.1038/7158xib.