APA
Australia. National Soil Fertility Proyect, Colwell J. D., . (1977). Objetives and procedures. Colwell Adelaide: Commonwealth Scientific and Industrial Research Organization. Division of soils.
Chicago
Australia. National Soil Fertility Proyect, Colwell J D, . 1977. Objetives and procedures. Colwell Adelaide: Commonwealth Scientific and Industrial Research Organization. Division of soils.
Harvard
Australia. National Soil Fertility Proyect, Colwell J. D., . (1977). Objetives and procedures. Colwell Adelaide: Commonwealth Scientific and Industrial Research Organization. Division of soils.
MLA
Australia. National Soil Fertility Proyect, Colwell J D, . Objetives and procedures. Colwell Adelaide: Commonwealth Scientific and Industrial Research Organization. Division of soils. 1977.
