Lerch, D. G. (1960). Dissemination of farm information through newspapers, magazines, radio and television; a story of the service in the United States, including how they developed, function, and are financed. International Cooperation Administration.
Dyfyniad Arddull ChicagoLerch, Donald G. Dissemination of Farm Information Through Newspapers, Magazines, Radio and Television; a Story of the Service in the United States, Including How They Developed, Function, and Are Financed. Washington: International Cooperation Administration, 1960.
Dyfyniad MLALerch, Donald G. Dissemination of Farm Information Through Newspapers, Magazines, Radio and Television; a Story of the Service in the United States, Including How They Developed, Function, and Are Financed. International Cooperation Administration, 1960.