author = { Roth, Lawrence O. AND Crow, Franklin R. AND Mahoney, George W. A. },

title = { An introduction to agricultural engineering },

publisher = {AVI Publ.},

isbn = {0870551914},

year = {1975},

address = { Westport, Conn. },

url = { http://slubdd.de/katalog?TN_libero_mab2 }