Cita APA (7a ed.)

Dixon, R., & Wheeler, C. (1986). Nitrogen fixation in plants. Blackie.

Cita Chicago Style (17a ed.)

Dixon, Rod, y C.T Wheeler. Nitrogen Fixation in Plants. Glasgow [etc.]: Blackie, 1986.

Cita MLA (9a ed.)

Dixon, Rod, y C.T Wheeler. Nitrogen Fixation in Plants. Blackie, 1986.