Cita APA (7a ed.)
Njeru, J., Schulte-Geldermann, E., Ochieng, B., & Ouma, E. (2013). Soil and potato nitrogen status and use of SPAD meter in nitrogen management in Kenya.
Cita Chicago Style (17a ed.)
Njeru, J., Elmar Schulte-Geldermann, B. Ochieng, y E. Ouma. Soil and Potato Nitrogen Status and Use of SPAD Meter in Nitrogen Management in Kenya. 2013.
Cita MLA (9a ed.)
Njeru, J., et al. Soil and Potato Nitrogen Status and Use of SPAD Meter in Nitrogen Management in Kenya. 2013.
Precaución: Estas citas no son 100% exactas.