International Symposium on Animal, Agricultural, and Food Processing Wastes Raleigh, N.C., & American Society of Agricultural Engineers. (2003). Animal, Agricultural and Food Processing Wastes IX. American Society of Agricultural Engineers.
Παραπομπή σε μορφή Chicago (17η εκδ.)International Symposium on Animal, Agricultural, and Food Processing Wastes Raleigh, N.C., και American Society of Agricultural Engineers. Animal, Agricultural and Food Processing Wastes IX. St. Joseph, Mich.: American Society of Agricultural Engineers, 2003.
Παραπομπή σε μορφή MLA (9th εκδ.)International Symposium on Animal, Agricultural, and Food Processing Wastes Raleigh, N.C., και American Society of Agricultural Engineers. Animal, Agricultural and Food Processing Wastes IX. American Society of Agricultural Engineers, 2003.