Isotopes in weed research - Vienna : International Atomic Energy Agency, 1966 - 237 p. : ilus. - Proceedings series . - Proceedings series . LCCN: 57350 Subjects--Topical Terms: Herbicidas.Malas hierbas--Control.Radiación--Efecto en plantas. Dewey Class. No.: 632.954 / S9 1965