JOhn,L Havln, & James,D. (2003). Soil fertility and fertilizers (6.). Pearson education.
Chicago Edition CitationJOhn,L Havln, and James,D. Soil Fertility and Fertilizers. 6. Pearson education, 2003.
MLA Edition CitationJOhn,L Havln, and James,D. Soil Fertility and Fertilizers. 6. Pearson education, 2003.
Warning: These citations may not always be 100% accurate.