Cita APA (7a ed.)

Sprent, J. I. (1987). The ecology of the nitrogen cycle. Cambridge University Press.

Cita Chicago Style (17a ed.)

Sprent, Janet I. The Ecology of the Nitrogen Cycle. Cambridge: Cambridge University Press, 1987.

Cita MLA (8a ed.)

Sprent, Janet I. The Ecology of the Nitrogen Cycle. Cambridge University Press, 1987.