//-->
Du mir aux agrovilles
Kerblay, Basile, (1985)
Selskostopanska nauka
(1962)
Upravleniju selʹskochozjajstvennym proizvodstvom - naučnuju osnovu
Chochova, N. P., (1980)
Possible agricultural, policies of the Czech Republic subject to different environmental programs
Bubendorf, Thomas S., (1994)