Cita APA (7a ed.)

Broughton, W., & Pühler, A. (1986). Nitrogen fixation. Clarendon Press.

Cita Chicago Style (17a ed.)

Broughton, W.J., y A. Pühler. Nitrogen Fixation. Oxford: Clarendon Press, 1986.

Cita MLA (9a ed.)

Broughton, W.J., y A. Pühler. Nitrogen Fixation. Clarendon Press, 1986.