Cita APA (7a ed.)
Ayanaba, A., & Nangju, D. (1973). Nodulation and nitrogen fixation in six grain legumes.
Cita Chicago Style (17a ed.)
Ayanaba, A., y D. Nangju. Nodulation and Nitrogen Fixation in Six Grain Legumes. 1973.
Cita MLA (9a ed.)
Ayanaba, A., y D. Nangju. Nodulation and Nitrogen Fixation in Six Grain Legumes. 1973.
Precaución: Estas citas no son 100% exactas.