by HUGHES DONALD KENT
Year of Publication 30.10.1981

by KENT HUGHES,DONALD WAYNE
Year of Publication 22.02.1979

by DONALD KENT HUGHES
Year of Publication 24.08.1978

by KENT HUGHES,DONALD
Year of Publication 22.09.1977

by HUGHES; DONALD KENT
Year of Publication 31.05.1977

by HUGHES; DONALD KENT
Year of Publication 10.02.1976

by DOUGLAS PORTA,GARY, KENT HUGHES,DONALD WAYNE
Year of Publication 15.02.1979

by BOUSE, JR.; SAMUEL GARNER, MARTIN; GALEN MONROE, NOVOTNY; LARRY GEORGE, HUGHES; DONALD KENT
Year of Publication 23.06.1998

by HUGHES, DONALD KENT, MECHANICSBURG, PA., US
Year of Publication 06.03.1986

by KENT HUGHES,DONALD
Year of Publication 21.08.1975

by DONALD KENT HUGHES, GEORGE WILLIAM ZIEGLER JR
Year of Publication 18.07.1972

by HUGHES, DONALD WAYNE KENT
Year of Publication 20.04.1988

by HUGHES, DONALD WAYNE KENT
Year of Publication 22.02.1988

by HUGHES, DONALD WAYNE KENT
Year of Publication 10.04.1987

by DONALD WAYNE KENT HUGHES
Year of Publication 23.03.1987

by HUGHES, DONALD WAYNE KENT
Year of Publication 16.01.1987

by HUGHES, DONALD WAYNE KENT
Year of Publication 27.11.1985

by HUGHES, DONALD WAYNE KENT
Year of Publication 21.11.1985

by HUGHES, DONALD WAYNE KENT
Year of Publication 19.08.1985

by HUGHES DONALD WAYNE KENT
Year of Publication 10.05.1985