Cita APA (7a ed.)

Williams, R. P., & Fraústo da Silva, J. J. R. (1997). The natural selection of the chemical elements: The environment and life's chemistry. Oxford University.

Cita Chicago Style (17a ed.)

Williams, RJ P., y J J R. Fraústo da Silva. The Natural Selection of the Chemical Elements: The Environment and Life's Chemistry. Oxford: Oxford University, 1997.

Cita MLA (9a ed.)

Williams, RJ P., y J J R. Fraústo da Silva. The Natural Selection of the Chemical Elements: The Environment and Life's Chemistry. Oxford University, 1997.