(2) Hamilton, James E. and W.R. Bryant. (1963) Profitable Farm Management. Prentice Hall, Inc.: Englewood Cliffs, NJ.
(3) http://w3.aces.uiuc.edu/InfoAg/CyberFarm/c-farm.html The Cyberfarmer.
(4) http://www5.interaccess.com/luckowgroup/f_office.htm A farm Office with no walls, few limitations.
(5) Vaughn, Lawrence M. and Lowell S. Hardin. (1951) Farm Work Simplification. John Wiley & Sons, Inc.: New York.