APA (7th ed.) Citation
Westerhof, R., Vilela, L., Ayarza, M. A., & Zech, W. (1999). Carbon fractions as sensitive indicators of quality of soil organic matter. International Center for Tropical Agriculture.
Chicago Style (17th ed.) Citation
Westerhof, R., Lourival Vilela, Miguel Angel Ayarza, and W. Zech. Carbon Fractions as Sensitive Indicators of Quality of Soil Organic Matter. International Center for Tropical Agriculture, 1999.
MLA (9th ed.) Citation
Westerhof, R., et al. Carbon Fractions as Sensitive Indicators of Quality of Soil Organic Matter. International Center for Tropical Agriculture, 1999.
Warning: These citations may not always be 100% accurate.