Cita APA (7a ed.)
Freibauer, A., Westerhof, R., Ayarza, M. A., Silva, J. d., & Zech, W. (1999). Short-term variation in aggregation and particulate organic matter under crops and pastures. International Center for Tropical Agriculture.
Cita Chicago Style (17a ed.)
Freibauer, A., R. Westerhof, Miguel Angel Ayarza, J.E. da Silva, y W. Zech. Short-term Variation in Aggregation and Particulate Organic Matter Under Crops and Pastures. International Center for Tropical Agriculture, 1999.
Cita MLA (9a ed.)
Freibauer, A., et al. Short-term Variation in Aggregation and Particulate Organic Matter Under Crops and Pastures. International Center for Tropical Agriculture, 1999.
Precaución: Estas citas no son 100% exactas.