Lepper, H. A., Fisher, H. J., & Warren, L. E. (1945). Official and tentative methods of analysis of the Association of official agricultural chemists (6th ed.). Association of Official agricultural chemists.
Chicago-Zitierstil (17. Ausg.)Lepper, Henry Albert, Harry Johnstone Fisher, und Lewis Eugene Warren. Official and Tentative Methods of Analysis of the Association of Official Agricultural Chemists. 6th ed. Washington, D.C: Association of Official agricultural chemists, 1945.
MLA-Zitierstil (9. Ausg.)Lepper, Henry Albert, et al. Official and Tentative Methods of Analysis of the Association of Official Agricultural Chemists. 6th ed. Association of Official agricultural chemists, 1945.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.