The Practical Foundations Heitefuss,Rudolph creator Welchi, Jacquie Francis, John text England Ellis Horwood Limited c1989 monographic 261p.: Ill.; [by] Rudolph Heitefuss, Jacquie Welchi [and] John Francis includes bibliographical references and index Crop Plant Protection SB950 .H4 074580523X(Elias Horwood Limited) 047021385X(Halsted Press) UOEL 000 20150525150838.0