Norton, J. F. (1932). Official and Tentative Methods of Analysis of the Association of Official Agricultural Chemists. (3d ed.).
Citação norma ChicagoNorton, John F. Official and Tentative Methods of Analysis of the Association of Official Agricultural Chemists. (3d Ed.). 1932.
Citação norma MLANorton, John F. Official and Tentative Methods of Analysis of the Association of Official Agricultural Chemists. (3d Ed.). 1932.
Nota: a formatação da citação pode não corresponder 100% ao definido pela respectiva norma.