APA (7th ed.) Citation
Westerhof, R., Vilela, L., Ayarza, M. A., & Zech, W. (1999). Labile N and the nitrogen management index of oxisols in the Brazilian cerrados. International Center for Tropical Agriculture.
Chicago Style (17th ed.) Citation
Westerhof, R., Lourival Vilela, Miguel Angel Ayarza, and W. Zech. Labile N and the Nitrogen Management Index of Oxisols in the Brazilian Cerrados. International Center for Tropical Agriculture, 1999.
MLA (9th ed.) Citation
Westerhof, R., et al. Labile N and the Nitrogen Management Index of Oxisols in the Brazilian Cerrados. International Center for Tropical Agriculture, 1999.
Warning: These citations may not always be 100% accurate.