L.E. Ehler

Genetics, Evolution and Biological Control  L.E. Ehler R. Sforza T. Mateille Hardcover. Cabi Publishing, 2003-12-31 ISBN 9780851997353     Critical Issues In Biological Control  M. Mackauer L.E. Ehler Hardback. Intercept Scientific, Medical and Technical Publications, 1990-01-31 ISBN 9780946707195