Cita APA (7a ed.)
Rondón, M. A., Lehmann, J., Ramírez, J., & Hurtado, M. (2007). Biological nitrogen fixation by common beans (Phaseolus vulgaris L.) increases with bio-char additions. Springer.
Cita Chicago Style (17a ed.)
Rondón, Marco Antonio, Johannes Lehmann, Juan Ramírez, y M.P Hurtado. Biological Nitrogen Fixation by Common Beans (Phaseolus Vulgaris L.) Increases with Bio-char Additions. Springer, 2007.
Cita MLA (9a ed.)
Rondón, Marco Antonio, et al. Biological Nitrogen Fixation by Common Beans (Phaseolus Vulgaris L.) Increases with Bio-char Additions. Springer, 2007.
Precaución: Estas citas no son 100% exactas.