APA (7th ed.) Citation

Pliny, t. E., Rackham, H., & Jones, W. H. S. (1961). Natural history. Harvard University Press.

Chicago Style (17th ed.) Citation

Pliny, the Elder, H. Rackham, and W. H. S. Jones. Natural History. Cambridge: Harvard University Press, 1961.

MLA (9th ed.) Citation

Pliny, the Elder, et al. Natural History. Harvard University Press, 1961.