Não informado. (1979). Advances in agricultural technology. Agricultural Research Service.
Chicago-Zitierstil (17. Ausg.)Não informado. Advances in Agricultural Technology. New Orleans, La: Agricultural Research Service, 1979.
MLA-Zitierstil (8. Ausg.)Não informado. Advances in Agricultural Technology. Agricultural Research Service, 1979.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.