National Symposium on Erosion and Soil Productivity New Orleans, La., & American Society of Agricultural Engineers. (1985). Erosion and soil productivity: Proceedings of the National Symposium on Erosion and Soil Productivity, December 10-11, 1984, Hyatt Regency New Orleans, New Orleans, Louisiana. American Society of Agricultural Engineers.
Παραπομπή σε μορφή Chicago (17η εκδ.)National Symposium on Erosion and Soil Productivity New Orleans, La., και American Society of Agricultural Engineers. Erosion and Soil Productivity: Proceedings of the National Symposium on Erosion and Soil Productivity, December 10-11, 1984, Hyatt Regency New Orleans, New Orleans, Louisiana. St. Joseph, Mich.: American Society of Agricultural Engineers, 1985.
Παραπομπή σε μορφή MLA (9th εκδ.)National Symposium on Erosion and Soil Productivity New Orleans, La., και American Society of Agricultural Engineers. Erosion and Soil Productivity: Proceedings of the National Symposium on Erosion and Soil Productivity, December 10-11, 1984, Hyatt Regency New Orleans, New Orleans, Louisiana. American Society of Agricultural Engineers, 1985.