by Searcy, Janet L, Coster, Jack E, Hertel, Gerard D
Published in IDEAS Working Paper Series from RePEc (01.01.1981)

by Stephen, Fred M, Search, Janet L, Hertel, Gerard D
Published in United States. Dept. of Agriculture. Technical bulletin ; (USA) (1980)

by EASTCOTT DE HERTEL P, JACKSON W H
Year of Publication 22.11.1976

by DE HERTEL EASTCOTT P, WELCH J E
Year of Publication 20.01.1975

by EASTCOTT DE HERTEL, PETER, TRUSSLER, RONALD CLARE, PETERBOROUGH, ONTARIO, CA
Year of Publication 30.07.1992

by PETER DE HERTEL EASTCOTT, JAMES ERNEST WELCH
Year of Publication 17.10.1972

by PETER DE HERTEL EASTCOTT, WILLIAM HERBERT JACKSON
Year of Publication 19.09.1972

by PETER DE HERTEL EASTCOTT, WILLIAM HERBERT JACKSON
Year of Publication 19.09.1972

by SPIBEY J, DE HERTEL EASTCOTT P
Year of Publication 24.11.1969

by HEINRICH HERTEL,DR, SIEGFRIED HARMSEN, MURCH DENNING,RALPH
Year of Publication 04.09.1969

by Hertel, A D
Published in Sygeplejersken (10.07.1991)

by HERTEL MARCUS DR
Year of Publication 15.02.2010

by HERTEL MARCUS DR
Year of Publication 15.02.2010

by HERTEL DR.. HEINRICH, RUPPIN DR.. DIETRICH
Year of Publication 20.07.1967

by HERTEL MARCUS DR
Year of Publication 15.12.2009

by HERTEL MARCUS DR
Year of Publication 15.10.2009

by HERTEL MARCUS DR
Year of Publication 15.02.2009

by Branham, Susan J, Thatcher, Robert C, Mason, Garland N, Hertel, Gerard D
Year of Publication 01.08.1985

by MELZER,JAROSLAV, HERTEL,.DR.,OTTO, SCHARF,.DR.,EMIL
Year of Publication 06.08.1981

by HASSO HERTEL,.DR
Year of Publication 17.09.1970