Cita APA

Crawford, D. H., & Dorothy H. Crawford. (2000). The invisible enemy: A natural history of viruses. Oxford,New York: Oxford University Press.

Chicago Style Citation

Crawford, Dorothy H., i Dorothy H. Crawford. The Invisible Enemy: A Natural History of Viruses. Oxford,New York: Oxford University Press, 2000.

Cita MLA

Crawford, Dorothy H., i Dorothy H. Crawford. The Invisible Enemy: A Natural History of Viruses. Oxford,New York: Oxford University Press, 2000.